ios 毛玻璃效果(高斯模糊)

//    ios 毛玻璃效果(高斯模糊)

UIImageView *bgImg = [[UIImageView alloc]initWithFrame:CGRectMake(0, 20, SCREEN_WIDTH, 187)];

bgImg.image = [UIImage imageNamed:@"启动图标最终版"];

NSURL * nads = [NSURL URLWithString:self.datause[0][@"image"]];

[bgImg sd_setImageWithURL:nads placeholderImage:[UIImage imageNamed:@"启动图标最终版"]];

bgImg.contentMode = UIViewContentModeScaleAspectFill;

bgImg.clipsToBounds = YES;

[self.view addSubview:bgImg];

UIBlurEffect *blur = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];

UIVisualEffectView *effectview = [[UIVisualEffectView alloc] initWithEffect:blur];

effectview.frame = CGRectMake(0, 0, bgImg.frame.size.width, 187);

[bgImg addSubview:effectview];