How to fill a path with gradient in drawRect:?
- by Derrick
filling a path with a solid color is easy enough:
CGPoint aPoint;
for (id pointValue in points)
{
aPoint = [pointValue CGPointValue];
CGContextAddLineToPoint(context, aPoint.x, aPoint.y);
}
[[UIColor redColor] setFill];
[[UIColor blackColor] setStroke];
CGContextDrawPath(context, kCGPathFillStroke);
I'd like to draw a gradient instead of solid red, but I am having trouble.
I've tried the code listed in the Question/Answer: http://stackoverflow.com/questions/422066/gradients-on-uiview-and-uilabels-on-iphone
which is:
CAGradientLayer *gradient = [CAGradientLayer layer];
[gradient setFrame:rect];
[gradient setColors:[NSArray arrayWithObjects:(id)[[UIColor blueColor] CGColor],
(id)[[UIColor whiteColor] CGColor], nil]];
[[self layer] setMasksToBounds:YES];
[[self layer] insertSublayer:gradient atIndex:0];
However, this paints the entire view that this is in with the gradient, covering up my original path.
