CGContext and retina display

Question

guys, this is my code:

- (void) renderPageAtIndex:(NSUInteger)index inContext:(CGContextRef)ctx {
    //background
    CGContextSetFillColorWithColor(ctx, [[         


        

Answer 1

Try setting the layers contentScale variable like this:

layer.contentsScale = [UIScreen mainScreen].scale;

This should make the code adapt to retina/nonretina displays.