iPhone dev Stupidity 74: UIScrollView beyond bounds gradient?

From here:

// Setup top most gradient parameters and clipping mask.

CGPoint startPoint = CGPointMake(rect.origin.x, rect.origin.y);

CGPoint endPoint = CGPointMake(0.0, shadowHeight_);

CGRect clipRect = CGRectMake(rect.origin.x, rect.origin.y, rect.size.width, shadowHeight_);

// Draw top most gradient within clipped rect. Look at Quartz Demo for details.

CGContextSaveGState(context);

CGContextClipToRect(context, clipRect);

CGContextDrawLinearGradient(context, gradient, startPoint, endPoint, 0);

CGContextRestoreGState(context);

---

and to setup the gradient:

CGColorSpaceRef rgb = CGColorSpaceCreateDeviceRGB();

        CGFloat colors[] = {

            //0.0, 0.0, 0.0, 0.5,

            //1.0, 1.0, 1.0, 0.0

65.0/256, 81.0/256, 81.0/256, 1.0,

0.0, 0.0, 0.0, 1.0,

        };

        

        gradient = CGGradientCreateWithColorComponents(rgb, colors, NULL, 2);

        

        CGColorSpaceRelease(rgb);