UIView with rounded corners

#import <QuartzCore/QuartzCore.h>

1)  self.viewTest.layer.cornerRadius = 15.0;

    self. viewTest.layer.borderWidth = 1.0;

     self. viewTest.layer.borderColor = [UIColor redColor].CGColor;

    self. viewTest.layer.masksToBounds = YES;

2) 

+(void)roundView:(UIView *)view onCorner:(UIRectCorner)rectCorner radius:(float)radius

{

    UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:view.bounds

                                                   byRoundingCorners:rectCorner

                                                         cornerRadii:CGSizeMake(radius, radius)];

    CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init];

    maskLayer.frame = view.bounds;

    maskLayer.path = maskPath.CGPath;

    [view.layer setMask:maskLayer];

}

The cool part about it is that you can select which corners you want rounded up.