UIView 定制边框

//    [recommendedTimeBackgroundView.layer setMasksToBounds:YES];
//    [loginButton.layer setCornerRadius:5.0]; //设置矩形四个圆角半径

//边框
    [recommendedTimeBackgroundView.layer setBorderWidth:1.0]; //边框宽度
    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
    CGColorRef colorref = CGColorCreate(colorSpace,(CGFloat[]){0.8,0.8,0.8, 1 });
    [recommendedTimeBackgroundView.layer setBorderColor:colorref];//边框颜色
    
    CGColorRelease(colorref);
    CGColorSpaceRelease(colorSpace);