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I draw a background image in a view with the following code:
CGContextRef currentContext = UIGraphicsGetCurrentContext();
CGContextSaveGState(currentContext);
UIImage *image = [UIImage imageNamed:@”background.jpg”];
[image drawAsPatternInRect:rect];
CGContextRestoreGState(currentContext);
This works well. But when I change the size of that view animated the drawn image is scaled until it get’s redraw. How can I ignore this transformation during the animation?
I finally found a solution. I use contentMode UIViewContentModeTopLeft so it doesn’t get scaled. And before the resize animation I only redraw if the new size is greater then the old one. And after the animation I always redraw.