毛玻璃效果

毛玻璃效果

1. 先创建一个视图

UIImageView *imageView =[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"12.jpg"]];
imageView.frame =CGRectMake(0, 0, self.view.frame.size.width, 400);
[self.view addSubview:imageView];
[imageView release];

2.创建一个毛玻璃效果

UIBlurEffect *effect=[UIBlurEffect effectWithStyle:UIBlurEffectStyleExtraLight];

3.创建一个毛玻璃视图,指定效果

UIVisualEffectView *effectView =[[UIVisualEffectView alloc] initWithEffect:effect];
effectView.alpha =0.5;
effectView.frame =imageView.frame;
[imageView addSubview:effectView];