毛玻璃效果

毛玻璃效果

原图片:

效果图

1. 先创建一个视图

例子:

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

例子:

    UIBlurEffect *effect=[UIBlurEffect effectWithStyle:UIBlurEffectStyleExtraLight];

3.创建一个毛玻璃视图,指定效果

例子:

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