UIImageView不能以正确的方向在iPhone中显示图像

Question

I have tried alot of solutions but non has worked yet

Heres what i am doing:

if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])
    {
        UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
        imagePicker.delegate = self;
        imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
        imagePicker.modalPresentationStyle = UIModalPresentationCurrentContext;
        //imagePicker.allowsEditing = YES;

        NSOperatingSystemVersion ios8_0_0 = (NSOperatingSystemVersion){8, 0, 0};

          //This was suggested in answer of some question of stackoverflow
        if ([[NSProcessInfo processInfo] isOperatingSystemAtLeastVersion:ios8_0_0])
        {
            if([[UIDevice currentDevice]orientation] == UIDeviceOrientationFaceUp)
            {
                if([UIApplication sharedApplication].statusBarOrientation == UIInterfaceOrientationLandscapeLeft)
                {
                    [[UIDevice currentDevice]setValue:[NSNumber numberWithInteger:UIDeviceOrientationLandscapeRight] forKey:@"orientation"];
                }
                else
                {
                    [[UIDevice currentDevice]setValue:[NSNumber numberWithInteger:UIDeviceOrientationLandscapeLeft] forKey:@"orientation"];
                }
            }
        }

        self.imagePickerController = imagePicker;
        [self presentViewController:self.imagePickerController animated:YES completion:nil];

}

When the above didnt worked i tried some thing else while saving picture

 NSData *imgPngData = UIImagePNGRepresentation([info objectForKey:UIImagePickerControllerOriginalImage]);
    UIImage *image = [UIImage imageWithData:imgPngData];
     imgPngData = UIImagePNGRepresentation(image);
        [_profilePicture setImage:[UIImage imageWithCGImage:[image CGImage] scale:1.0 orientation:UIImageOrientationUp]];

but no effect on behavior. This is what happening Iam taking this image.

And this what appearing on my imageView

Kindly suggest some thing. Thanking all of you in advance.

Answer 1

I have same problem solved it by integrating below code. Reference link for the code

- (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));
//    CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceGray();
//    CGContextRef ctx = CGBitmapContextCreate(NULL, self.size.width, self.size.height,
//                                            8, self.size.width,
//                                             colorspace,
//                                             kCGImageAlphaNone);
    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;
}

Answer 2

Use this may help you

 -(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
    {

        [uploadImageView setContentMode:UIViewContentModeScaleAspectFit];
        uploadImageView.layer.masksToBounds = YES;
        uploadImage=[info objectForKey:UIImagePickerControllerEditedImage];
        uploadImage = [self imageWithImage:uploadImage scaledToWidth:uploadImageView.frame.size.width];
        uploadImageView.image=uploadImage;

        [picker dismissViewControllerAnimated:YES completion:nil];

    }