scale and crop image ios

Question

I\'m working in a function for scaling and crop image (similar to camara app) for iOS, the code below works fine, just that the resulting image came up side down, and I woul

Answer 1

I've also came across this issue without explanation. But have found a workaround that solves that problem. Just put the following two lines in your code and try it again. It works for me.

CGContextTranslateCTM(context, 0.0, newRect.size.height);
CGContextScaleCTM(context, 1.0, -1.0);//flip context