Selfie's

[Manueldjz]

any knows why the photo selfie are upside down
?

[igorcarrasco]

Greetings,

The wrong orientation is present for any photo not just selfies, if you upload photo that wasn't taken using the "right orientation of the iPhone" and download it again you will see it.
I'm using this method to fix the image orientation maybe it will help you:

• (UIImage *)fixOrientation {

  // No-op if the orientation is already correct
  if (self.imageOrientation == UIImageOrientationUp) return self;

  // We need to calculate the proper transformation to make the image upright.
  // We do it in 2 steps: Rotate if Left/Right/Down, and then flip if Mirrored.
  CGAffineTransform transform = CGAffineTransformIdentity;

  switch (self.imageOrientation) {
  case UIImageOrientationDown:
  case UIImageOrientationDownMirrored:
  transform = CGAffineTransformTranslate(transform, self.size.width, self.size.height);
  transform = CGAffineTransformRotate(transform, M_PI);
  break;

  case UIImageOrientationLeft:
  case UIImageOrientationLeftMirrored:
      transform = CGAffineTransformTranslate(transform, self.size.width, 0);
      transform = CGAffineTransformRotate(transform, M_PI_2);
      break;
  
  case UIImageOrientationRight:
  case UIImageOrientationRightMirrored:
      transform = CGAffineTransformTranslate(transform, 0, self.size.height);
      transform = CGAffineTransformRotate(transform, -M_PI_2);
      break;
  case UIImageOrientationUp:
  case UIImageOrientationUpMirrored:
      break;
  

  }

  switch (self.imageOrientation) {
  case UIImageOrientationUpMirrored:
  case UIImageOrientationDownMirrored:
  transform = CGAffineTransformTranslate(transform, self.size.width, 0);
  transform = CGAffineTransformScale(transform, -1, 1);
  break;

  case UIImageOrientationLeftMirrored:
  case UIImageOrientationRightMirrored:
      transform = CGAffineTransformTranslate(transform, self.size.height, 0);
      transform = CGAffineTransformScale(transform, -1, 1);
      break;
  case UIImageOrientationUp:
  case UIImageOrientationDown:
  case UIImageOrientationLeft:
  case UIImageOrientationRight:
      break;
  

  }

  // Now we draw the underlying CGImage into a new context, applying the transform
  // calculated above.
  CGContextRef ctx = CGBitmapContextCreate(NULL, self.size.width, self.size.height,
  CGImageGetBitsPerComponent(self.CGImage), 0,
  CGImageGetColorSpace(self.CGImage),
  CGImageGetBitmapInfo(self.CGImage));
  CGContextConcatCTM(ctx, transform);
  switch (self.imageOrientation) {
  case UIImageOrientationLeft:
  case UIImageOrientationLeftMirrored:
  case UIImageOrientationRight:
  case UIImageOrientationRightMirrored:
  // Grr...
  CGContextDrawImage(ctx, CGRectMake(0,0,self.size.height,self.size.width), self.CGImage);
  break;

  default:
      CGContextDrawImage(ctx, CGRectMake(0,0,self.size.width,self.size.height), self.CGImage);
      break;
  

  }

  // And now we just create a new UIImage from the drawing context
  CGImageRef cgimg = CGBitmapContextCreateImage(ctx);
  UIImage *img = [UIImage imageWithCGImage:cgimg];
  CGContextRelease(ctx);
  CGImageRelease(cgimg);

  return img;
  }