ios - didFinishPickingMediaWithInfo 方向问题

Question

我正在尝试在imagePickerController:didFinishPickingMediaWithInfo中管理图像旋转，但经过多次尝试，我没有找到任何解决方案。我最后的尝试是:

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

        // load the storyboard by name
        UIStoryboard *storyboard = [UIStoryboard storyboardWithName:[ApplicationSupport getStoryBoardName] bundle:nil];
        UploadViewController *uploadView = [storyboard instantiateViewControllerWithIdentifier:@"ViewUploadFile"];

        UIImage *image = [info valueForKey:UIImagePickerControllerOriginalImage];
        NSDictionary *metadataImage = [info valueForKey:UIImagePickerControllerMediaMetadata];

        uploadView.imageToUpload = image;

        if([[metadataImage objectForKey:@"Orientation"] intValue] == 3) {
            UIImage *imageRotated = [UIImage imageWithCGImage:[image CGImage] scale:[image scale] orientation:UIImageOrientationDown];
            uploadView.dataToUpload = UIImagePNGRepresentation(imageRotated);
        } else {
            uploadView.dataToUpload = UIImagePNGRepresentation(image);
        }

        // ETC...
    }

我不能也不想使用 JPEGRepresentation。当 iPad 处于特定位置时，我需要将照片旋转 180°。

有什么想法吗？

Answer 1

看看这个:http://www.catamount.com/blog/1015/uiimage-extensions-for-cutting-scaling-and-rotating-uiimages/

只要打电话

UIImage *rotatedImage = [originalImage imageRotatedByDegrees:180.0];

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