didFinishPickingMediaWithInfo方向问题 [英] didFinishPickingMediaWithInfo orientation issue

问题描述

我正在尝试在 imagePickerController：didFinishPickingMediaWithInfo 中管理图片轮换，但经过多次尝试后，我找不到任何解决方案。我最后一次尝试是：

i'm trying to manage image rotation in imagePickerController:didFinishPickingMediaWithInfo, but after several attempts, I did not find any solutions. My last try is:

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

I can't and I don't want to use JPEGRepresentation. I need to rotate my photo by 180° when iPad is in specific position.

任何想法？

推荐答案

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

只需致电

UIImage *rotatedImage = [originalImage imageRotatedByDegrees:180.0];

Source

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