How to get text in a CATextLayer to be clear

Question

I\'ve made a CALayer with an added CATextLayer and the text comes out blurry. In the docs, they talk about \"sub-pixel antialiasing\", but that doesn\

Answer 1

You should do 2 things, the first was mentioned above:

Extend CATextLayer and set the opaque and contentsScale properties to properly support retina display, then render with anti aliasing enabled for text.

+ (TextActionLayer*) layer
{
  TextActionLayer *layer = [[TextActionLayer alloc] init];
  layer.opaque = TRUE;
  CGFloat scale = [[UIScreen mainScreen] scale];
  layer.contentsScale = scale;
  return [layer autorelease];
}

// Render after enabling with anti aliasing for text

- (void)drawInContext:(CGContextRef)ctx
{
    CGRect bounds = self.bounds;
    CGContextSetFillColorWithColor(ctx, self.backgroundColor);
    CGContextFillRect(ctx, bounds);
    CGContextSetShouldSmoothFonts(ctx, TRUE);
    [super drawInContext:ctx];
}