Drawing special graphics

 // Set view position and size of 
    the UIView myView * = [[the UIView the alloc] the initWithFrame: CGRectMake ( 15 , 300 , self.view.bounds.size.width- 30 , 46 is )];
     // set the background color 
    myView.backgroundColor = [ blackColor UIColor];
     // draw the rounded corners rounded to set "|" is combined 
    UIBezierPath maskPath * = [UIBezierPath bezierPathWithRoundedRect: myView.bounds byRoundingCorners: UIRectCornerTopLeft | UIRectCornerTopRight cornerRadii: CGSizeMake ( 16 , 16 )]; 
    CAShapeLayer * = maskLayer [[CAShapeLayer the alloc] the init];
     // set the size 
    maskLayer.frame =myView.bounds;
     // set the graphic appearance 
    maskLayer.path = maskPath.CGPath; 
    myView.layer.mask = maskLayer;
     // add 
    [self.view addSubview: myView];

Specifies the corner