现在我正在使用LBBlurredImage来模糊图片，但我想更改为 iOS8的{{1}}以模糊。
我很难实现任何想法？
使用UIVisualEffectView
LBBLurredImage 到目前为止，我最好的注意事项是我添加/更改为以前的代码，使用- (void)updateData {
// Set up Screen
self.screenHeight = [UIScreen mainScreen].bounds.size.height;
//UIImage *background = [UIImage imageNamed:@"gray"];
UIImage *background = [UIImage imageNamed:backgroundImageGlobal];
// Background Image
self.backgroundImageView = [[UIImageView alloc] initWithImage:background];
self.backgroundImageView.contentMode = UIViewContentModeScaleAspectFill;
[self.view addSubview:self.backgroundImageView];
// Background Image Blurred
self.blurredImageView = [[UIImageView alloc] init];
self.blurredImageView.contentMode = UIViewContentModeScaleAspectFill;
self.blurredImageView.alpha = 0.0; // 0.0
[self.blurredImageView setImageToBlur:background blurRadius:10 completionBlock:nil]; // blurRadius:10
[self.view addSubview:self.blurredImageView];
}
- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
CGFloat height = scrollView.bounds.size.height;
CGFloat position = MAX(scrollView.contentOffset.y, 0.0);
CGFloat percent = MIN(position / height, 1.0);
self.blurredImageView.alpha = percent;
}
实现：
UIVisualEffectView答案 0 :(得分：0)
我明白了。我用过：
// iOS8 Blur
UIBlurEffect *blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];
self.visualEffectViewGlobal = [[UIVisualEffectView alloc] initWithEffect:blurEffect];
self.visualEffectViewGlobal.frame = self.view.bounds;
self.visualEffectViewGlobal.alpha = 0.0;
[self.view addSubview:self.visualEffectViewGlobal];