Alternative UIImage imageWithCGImage: scale: orientation:

Question

I built an application for 4.x, which should be deployed for all iPhones 3.0-4.x. I realized that the imageWithCGImage: scale: orientation method is only available in 4.0 and later. Any alternative for 3.x? For reference:

Creates and returns an image object with the specified scale and orientation factors. + (UIImage *)imageWithCGImage:(CGImageRef)imageRef scale:(CGFloat)scale orientation:(UIImageOrientation)orientation 

My current use:

 UIImage *inputImage = [UIImage imageWithCGImage:[[UIImage imageNamed: @"arrow.png"] CGImage] scale:1.2 orientation:UIImageOrientationUp]; 

The scale is static (i.e. I never change it), so I can scale the image through Photoshop, but orientation remains a necessity in my application.

Thanks!

Answer 1

You can scale, rotate (translate) using the CGContext functions. Then you can use ...

 CGImageRef CGBitmapContextCreateImage ( CGContextRef c ); 

and

 + (UIImage *)imageWithCGImage:(CGImageRef)cgImage