drawAsPatternInRect:
Draws a tiled Quartz pattern using the receiver’s contents as the tile pattern.
- (void)drawAsPatternInRect:(CGRect)rect
Parameters
- rect
- The rectangle (in the coordinate system of the graphics context) in which to draw the image.
Discussion of [UIImage drawAsPatternInRect]
This method uses a Quartz pattern to tile the image in the specified rectangle. The image is tiled with no gaps and the fill color is ignored. In the default coordinate system, the image tiles are situated down and to the right of the origin of the specified rectangle. This method respects any transforms applied to the current graphics context, however.
Example of [UIImage drawAsPatternInRect]
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSaveGState(context);
CGContextSetBlendMode(context, kCGBlendModeMultiply);
[[UIImage imageNamed:@"background"] drawAsPatternInRect:self.bounds];
CGContextRestoreGState(context);