After changing image size, image's transparent part became black

Question

I am trying to change image size according to my view so I wrote this code for that.

 -(UIImage *)imageWithImage:(UIImage*)image scaledToSize:(CGSize)newSize
{
          


        

Answer 1

You should use NO as the second argument, that toggles the transparency of the image.

UIGraphicsBeginImageContextWithOptions(newSize, NO, [UIScreen mainScreen].scale);

Check out Apple's documentation for more details.