IOS_实现毛玻璃效果

UIView *alpView = [[UIView alloc]initWithFrame:CGRectMake(10, 0, SCREEN_Width - 20,frame.size.height - 10 )];

alpView.frame = CGRectMake(0, 0, SCREEN_Width - 20,frame.size.height - 10 );

alpView.backgroundColor = [UIColor blackColor];//根据需要设置，可不写

alpView.alpha = 0.1;//根据需要设置，可不写

alpView.layer.cornerRadius = 5;

alpView.layer.masksToBounds = YES;

//创建毛玻璃

UIBlurEffect * blur = [UIBlurEffect effectWithStyle:UIBlurEffectStyleDark];

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

effe.frame = CGRectMake(10, 0, SCREEN_Width - 20,frame.size.height - 10);

effe.layer.masksToBounds = YES;

effe.layer.cornerRadius = 5;

effe.alpha = 0.9;

//把要添加的视图加到毛玻璃上

[effe addSubview:alpView];

[self addSubview:effe];