Flipping image not working on iOS 10 - objective-c

Question

I am facing weird issue while flipping Image in iOS 10
Here is my code.
uiImage = [[UIImage alloc] initWithCIImage:ciImage];
flippedImg = [UIImage imageWithCIImage:ciImage scale:uiImage.scale orientation:UIImageOrientationDownMirrored];
captureImgView.image = flippedImg;
I am taking one ciImage and getting it into uiImage.
then flipping that UIImage.
this code works fine on all iOS version, lower than 10.
but not working on 10 and above.
I tried all Orientations,
UIImageOrientationUpMirrored
UIImageOrientationLeftMirrored
UIImageOrientationUp
UIImageOrientationRight
UIImageOrientationDown
UIImageOrientationLeft
UIImageOrientationDownMirrored
UIImageOrientationRightMirrored
But nothing work.
I am taking selfie from front camera and attaching that selfie to UIImageView.
I don't want to attach flipped image taken from front camera.
I want orignal image here.
Please guide me for same.
Thanks in advance.

Answer 1

I got the solution by my own.
What I did,
I checked for iOS10 version of system,
captured the image from front camera, converted from CIImage to UIImage and placed it on the UIImageView.
Once I placed it on UIImageView,
I rotate the UIImageView using CGAffineTransformMakeRotation to fit in appropriate position and place.
here is the sample code.
NSString *systemVersion = [UIDevice currentDevice].systemVersion;
captureImgView = [[UIImageView alloc]init];
if([systemVersion floatValue] < 10.0)
{
uiImage = [[UIImage alloc] initWithCIImage:ciImage];
flippedImg = [UIImage imageWithCIImage:ciImage scale:uiImage.scale orientation:UIImageOrientationDownMirrored];
captureImgView.image = flippedImg;
captureImgView.transform = CGAffineTransformMakeRotation(M_PI_2);
}
else
{
uiImage = [[UIImage alloc] initWithCIImage:ciImage];
flippedImg = [UIImage imageWithCIImage:ciImage scale:uiImage.scale orientation:UIImageOrientationUpMirrored];
captureImgView.image = uiImage;
captureImgView.transform = CGAffineTransformMakeRotation ((M_PI * 270 / 180.0));
}

Answer 2

I think you missed something. In my code it's working fine...
#interface ViewController ()
#property (weak, nonatomic) IBOutlet UIImageView *imgOriginal;
#property (weak, nonatomic) IBOutlet UIImageView *imgFlipped;
#end
#pragma mark - UIImagePicker delegate
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *uiImage = info[UIImagePickerControllerOriginalImage];
CGImageRef cgImage = uiImage.CGImage;
CIImage *ciImage = [CIImage imageWithCGImage:cgImage];
UIImage *flippedImg = [UIImage imageWithCIImage:ciImage scale:uiImage.scale orientation:UIImageOrientationRight];
_imgOriginal.image = uiImage;
_imgFlipped.image = flippedImg;
[self dismissViewControllerAnimated:YES completion:nil];
}
Here output :
In iOS 10, it will be like :
#pragma mark - UIImagePicker delegate
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *uiImage = info[UIImagePickerControllerOriginalImage];
CGImageRef cgImage = uiImage.CGImage;
//CIImage *ciImage = [CIImage imageWithCGImage:cgImage];
//UIImage *flippedImg = [UIImage imageWithCIImage:ciImage scale:uiImage.scale orientation:UIImageOrientationRight];
UIImage *flippedImg = [UIImage imageWithCGImage:cgImage scale:uiImage.scale orientation:UIImageOrientationLeftMirrored];
_imgOriginal.image = uiImage;
_imgFlipped.image = flippedImg;
[self dismissViewControllerAnimated:YES completion:nil];
}