一张清楚的图片变的模糊了,也就是所谓的毛玻璃效果,经过查看图层能够发现,它只是在原有的图片上加了一个View,而这个View具备毛玻璃效果,spa
图层查看以下图所示:code
最终效果图以下图:blog
1 1 // 建立图片 2 2 UIImageView *imgView = [[UIImageView alloc]initWithFrame:[UIScreen mainScreen].bounds]; 3 3 imgView.image = [UIImage imageNamed:@"1"]; 4 4 [self.view addSubview:imgView]; 5 5 //添加模糊效果 6 6 UIBlurEffect *blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight]; 7 7 UIVisualEffectView *effectView = [[UIVisualEffectView alloc]initWithEffect:blurEffect]; 8 8 effectView.frame = [UIScreen mainScreen].bounds; 9 9 [imgView addSubview:effectView];