(iOS) Capture a UIView as a UIImage

captureViewAsUIImage.m

// capture the contents of the view in the rect specified
- (UIImage*)captureView:(UIView*)view rect:(CGRect)rect {
	if (rect.size.width == 0 || rect.size.height == 0)
		rect = view.bounds;
	
	UIGraphicsBeginImageContext(view.bounds.size);
	CGContextClipToRect(UIGraphicsGetCurrentContext(), rect);
	[view.layer renderInContext:UIGraphicsGetCurrentContext()];
	UIImage *anImage = UIGraphicsGetImageFromCurrentImageContext();
	UIGraphicsEndImageContext();
	CGImageRef finalImgRef = CGImageCreateWithImageInRect(anImage.CGImage, rect);
	UIImage *finalImg = [UIImage imageWithCGImage:finalImgRef];
	CGImageRelease(finalImgRef);
	
	return finalImg;
}