iOS 10에서 Apple의 새로운 RAW 사진 형식 .dng을 내보내는 방법은 무엇입니까?

Question

Apple의 새로운 RAW 사진 형식 .dng을 내보내는 데 문제가 있습니다.

UIActivityViewController는 사진을 JPEG로 내 보냅니다.

도움을 주시면 감사하겠습니다.

Answer 1

다음은 문제를 해결 한 방법입니다.

-(void)activityAction{ 
PHAsset *asset = self.assetsFetchResults[(int)self.image_number]; 

PHImageRequestOptions *options = [[PHImageRequestOptions alloc] init]; 
options.synchronous = NO; 
options.version = PHImageRequestOptionsVersionCurrent; 
options.deliveryMode = PHImageRequestOptionsDeliveryModeOpportunistic; 
options.resizeMode = PHImageRequestOptionsResizeModeNone; 
options.networkAccessAllowed = NO;//HAS TO BE YES TO DOWNLOAD FROM THE CLOUD AND PROGRESS TO SHOW 
/*options.progressHandler = ^(double progress,NSError *error,BOOL* stop, NSDictionary* dict) { 
    NSLog(@"progress %lf",progress); //never gets called 
};*/ 

[[PHImageManager defaultManager] requestImageDataForAsset:asset options:options resultHandler:^(NSData *imageData, NSString *dataUTI, UIImageOrientation imageOrientation, NSDictionary *info){ 

    NSURL *assetURL = [info objectForKey:@"PHImageFileURLKey"]; 
    NSString *photoFormat = [assetURL pathExtension]; 

    NSURL *temporaryDNGFileURL; 

    NSArray *activityItems; 

    if([photoFormat isEqualToString:@"DNG"] && [[UIDevice currentDevice].systemVersion floatValue] >= 10){ 
     NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
     NSString *documentsDirectory = [paths objectAtIndex:0]; 
     NSDateFormatter *format = [[NSDateFormatter alloc] init]; 
     [format setDateFormat:@"MMddyyyyHHmmss"]; 
     NSString *assetDateString = [format stringFromDate:[NSDate date]]; 
     NSString *assetPath = [documentsDirectory stringByAppendingPathComponent:[assetDateString stringByAppendingString:@".dng"]]; 
     temporaryDNGFileURL = [NSURL fileURLWithPath:assetPath]; 
     [imageData writeToURL:temporaryDNGFileURL atomically:YES]; 

     activityItems = @[temporaryDNGFileURL]; 
    } 
    else{ 
     UIImage *shareImage = [[UIImage alloc] initWithData:imageData]; 

     activityItems = @[shareImage]; 
    } 

    UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil]; 
    activityVC.excludedActivityTypes = @[UIActivityTypeSaveToCameraRoll]; 
    activityVC.modalTransitionStyle = UIModalTransitionStyleCoverVertical; 
    [self presentViewController:activityVC animated:YES completion:nil]; 

    [activityVC setCompletionWithItemsHandler:^(NSString *activityType, BOOL completed, NSArray *returnedItems, NSError *activityError) { 
     NSString *ServiceMsg = nil; 
     if([activityType isEqualToString:UIActivityTypeMail])   ServiceMsg = @"Mail Done"; 
     if([activityType isEqualToString:UIActivityTypeMessage]) ServiceMsg = @"Message Done"; 
     if([activityType isEqualToString:UIActivityTypeAirDrop]) ServiceMsg = @"AirDrop Done"; 
     if([activityType isEqualToString:UIActivityTypePostToTwitter]) ServiceMsg = @"Twitter Done"; 
     if([activityType isEqualToString:UIActivityTypePostToFacebook]) ServiceMsg = @"Facebook Done"; 
     if([activityType isEqualToString:UIActivityTypePostToFlickr]) ServiceMsg = @"Flickr Done"; 
     if([activityType isEqualToString:UIActivityTypePostToTencentWeibo]) ServiceMsg = @"Weibo Done"; 

     if(completed){ 
      [customActivityActionPressedTimer invalidate]; 
      customActivityActionPressedTimer = nil; 
      customActivityAction = 0; 
      [[NSUserDefaults standardUserDefaults] setInteger:0 forKey:@"customActivityAction"]; 

      NSLog(@"ACTIVITY VIEW DONE"); 

      if([[NSFileManager defaultManager] fileExistsAtPath:temporaryDNGFileURL.path]){ 
       NSError *error; 
       [[NSFileManager defaultManager] removeItemAtPath:temporaryDNGFileURL.path error:&error]; 
       if(error){ 
        NSLog(@"RAW DNG FILE DELETE FAILED"); 
       } 
       else{ 
        NSLog(@"RAW DNG FILE DELETED"); 
       } 
      } 
     } 
     else{ 
      [customActivityActionPressedTimer invalidate]; 
      customActivityActionPressedTimer = nil; 
      customActivityAction = 0; 
      [[NSUserDefaults standardUserDefaults] setInteger:0 forKey:@"customActivityAction"]; 

      NSLog(@"ACTIVITY VIEW CANCEL"); 

      if([[NSFileManager defaultManager] fileExistsAtPath:temporaryDNGFileURL.path]){ 
       NSError *error; 
       [[NSFileManager defaultManager] removeItemAtPath:temporaryDNGFileURL.path error:&error]; 
       if(error){ 
        NSLog(@"RAW DNG FILE DELETE FAILED"); 
       } 
       else{ 
        NSLog(@"RAW DNG FILE DELETED"); 
       } 
      } 
     } 
    }]; 
}]; 

}