UIImage vs NSImage: Drawing to an off screen image in iOS

Question

In mac osx (cocoa), It is very easy to make a blank image of a specific size and draw to it off screen:

NSImage* image = [[NSImage alloc] initWithSize:NSMakeSi         


        

Answer 1

You can do that as follows:

UIGraphicsBeginImageContext(CGSizeMake(64, 64));
//Drawing code here
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

Here is Apple's Graphics and Drawing reference.