iOS drawing image out of a context

[chhoda]

Currently I am overriding drawrect Method to draw some lines etc to my view. I need similar drawing but to some rectangle and make a UIImage or CGIImage out of it. Can I ? any examples ?

--CH

 

[PhoneyDeveloper]

This is an example of code that creates a UIImage outside of drawRect. You can do any kind of Core Graphics drawing after creating the image context.

UIImage* resizedImage(UIImage *inImage, CGRect thumbRect)
{
	UIGraphicsBeginImageContext(thumbRect.size);
	
	// Draw into the context, this scales the image
	[inImage drawInRect:CGRectMake(0, 0, thumbRect.size.width, thumbRect.size.height)];

	UIImage*	result = UIGraphicsGetImageFromCurrentImageContext();

	UIGraphicsEndImageContext();

	return result;
}