Can not get 카메라로 촬영 한 이미지의 파일 이름

Question

카메라로 이미지를 캡처하고 갤러리에 저장할 수있는 앱을 제작하려고합니다. 그러나 이미지의 파일 이름을 가져올 수 없습니다. 카메라 롤에서 이미지를 선택하면 선택한 이미지의 파일 이름을 가져올 수 있습니다. 그러나 앱에서 카메라로 이미지를 캡처하면 파일 이름이 "null"이됩니다. 여기에 내가 어떻게 캡처의 파일 이름을 얻을 수 있다는 점에서 붙어 캡처 한 이미지를

- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo { 
    UIAlertView *alert; 
    //NSLog(@"Image:%@", image); 
     if (error) { 
     alert = [[UIAlertView alloc] initWithTitle:@"Error!" 
              message:[error localizedDescription] 
              delegate:nil 
           cancelButtonTitle:@"OK" 
           otherButtonTitles:nil]; 
     [alert show]; 

    } 
} 

을 저장 UIImagePickerController

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

    UIImage *chosenImage = [self scaleAndRotateImage:[info valueForKey:UIImagePickerControllerOriginalImage]]; 
    NSString *mediaType = info[UIImagePickerControllerMediaType]; 
     self.userProfileImage.image = chosenImage; 

    if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) { 
     UIImage *image = info[UIImagePickerControllerOriginalImage]; 

     if (newMedia) 
      UIImageWriteToSavedPhotosAlbum(image, 
              self, 
              @selector(image:finishedSavingWithError:contextInfo:), 
              nil); 
    } 

    imageRotation=[NSString stringWithFormat:@"%f %f %f",acos (self.userProfileImage.transform.a), asin (self.userProfileImage.transform.b), atan2(self.userProfileImage.transform.b, self.userProfileImage.transform.a)]; 
    CGFloat angle = [(NSNumber *)[self.userProfileImage valueForKeyPath:@"layer.transform.rotation.z"] floatValue]; 
    NSLog(@"%f", angle); 

    NSURL *referenceURL = [info objectForKey:UIImagePickerControllerReferenceURL]; 
    ALAssetsLibrary *assetLibrary = [ALAssetsLibrary new]; 

    [assetLibrary assetForURL:referenceURL 
        resultBlock:^(ALAsset *asset) { 
         ALAssetRepresentation *assetRep = [asset defaultRepresentation]; 
        fileName = [assetRep filename]; 
         NSLog(@"File name = %@", fileName);  
        } 

       failureBlock:^(NSError *error) { 
        NSLog(@"%@", error); 
       }]; 

    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent]; 
    [[UIApplication sharedApplication] setStatusBarHidden:YES]; 
    [picker dismissViewControllerAnimated:YES completion:nil]; 
    imageChanged=TRUE; 
} 

그리고이 코드를 사용하여 내 저장하는 코드 갤러리에서 선택 이미지 영상. 내 코드에서 내가 뭘하고있어? 수정이나 해결책을 제안 해주세요. 어떤 도움을 주시면 감사하겠습니다.

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { 
    @try { 
     self.myinfo = info; 
     DDLogDebug(@"MediaListView - Dismissing camera ui..."); 
     [self.cameraUI dismissViewControllerAnimated:YES completion:nil]; 

     mediaURL = [info objectForKey:UIImagePickerControllerMediaURL]; 
     DDLogDebug(@"MediaListView - Media url = %@", mediaURL); 

     NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType]; 
     DDLogDebug(@"MediaListView - Selected mediaType: %@", mediaType); 

     // This is a video 
     if(mediaURL) { 
      DDLogDebug(@"MediaListView - This is a video"); 

      // Just recorded video 
      if (self.source == UIImagePickerControllerSourceTypeCamera) { 
       DDLogDebug(@"MediaListView - This is a new video, saving to photos album..."); 

       // Save video before getting its name 
       ALAssetsLibrary *library = [ALAssetsLibrary new]; 

       [library writeVideoAtPathToSavedPhotosAlbum:mediaURL completionBlock:^(NSURL *assetURL, NSError *error){ 
        if (error) { 
         DDLogDebug(@"MediaListView - Failed to save the photo to photos album..."); 
        } else { 
         DDLogDebug(@"MediaListView - Video saved to photos album..."); 

         // Video saved, we can get its name 
         [self getNameFromUrl:assetURL]; 
        } 
       }]; 
      } 
      else { 
       DDLogDebug(@"MediaListView - This is an existing video, getting name..."); 
       // Get video name 
       [self getNameFromUrl:[info objectForKey:UIImagePickerControllerReferenceURL]]; 
      } 
     } 
     // This is a photo 
     else { 
      DDLogDebug(@"MediaListView - This is a photo..."); 
      self.originalImage = (UIImage*)[info objectForKey:UIImagePickerControllerOriginalImage]; 

      // Just taken photo 
      if (self.source == UIImagePickerControllerSourceTypeCamera) { 
       DDLogDebug(@"MediaListView - This is a new photo, saving to photos album..."); 

       // Save photo to album 
       ALAssetsLibrary *library = [ALAssetsLibrary new]; 

       [library writeImageToSavedPhotosAlbum:[self.originalImage CGImage] 
              orientation:(ALAssetOrientation)[self.originalImage imageOrientation] 
             completionBlock:^(NSURL *assetURL, NSError *error){ 
        if (error) { 
         DDLogDebug(@"MediaListView - Failed to save the vide to photos album..."); 
        } else { 
         DDLogDebug(@"MediaListView - Photo saved to photos album..."); 

         // Get photo name 
         [self getNameFromUrl:assetURL]; 
        } 
       }]; 
      } 
      else { 
       DDLogDebug(@"MediaListView - This is an existing image, getting name..."); 
       // Get photo name 
       [self getNameFromUrl:[info objectForKey:@"UIImagePickerControllerReferenceURL"]]; 
      } 
     } 
    } 
    @catch (NSException *exception) { 
     DDLogError(@"MediaListView - Exception in picker didFinishPickingMediaWithInfo"); 
     DDLogError(@"MediaListView - %@", [exception description]); 
    } 
} 

- (void)getNameFromUrl(NSURL*)url { 
    @try { 
     DDLogDebug(@"MediaListView - GetNameFromUrl"); 

     ALAssetsLibraryAssetForURLResultBlock resultblock = ^(ALAsset *asset) { 

      if (asset == nil) { 
       DDLogError(@"MediaListView - SaveAssetData - asset is nil!"); 
       return; 
      } 

      DDLogDebug(@"MediaListView - SaveAssetData - Got asset data: %@", asset.description); 
      ALAssetRepresentation *assetRep = [asset defaultRepresentation]; 

      NSString *fileName = [assetRep filename]; 
      DDLogDebug(@"MediaListView - SaveAssetData - File name = %@", fileName); 
     }; 

     ALAssetsLibraryAccessFailureBlock failureblock = ^(NSError *error) { 
      DDLogError(@"MediaListView - SaveAssetData - Failed to get name%@", error); 
     }; 

     ALAssetsLibrary *library = [ALAssetsLibrary new]; 
     [library assetForURL:url resultBlock:resultblock failureBlock:failureblock]; 
    } 
    @catch (NSException *exception) { 
     DDLogError(@"MediaListView - Exception in saveAssetData"); 
     DDLogError(@"MediaListView - %@", [exception description]); 
    } 
} 

Answer 1

사전

감사 내가 UIImagePickerController를 함께 고른 파일, 비디오 또는 사진의 파일 이름을 얻는 방법이다 .