Save image to a specific photo album with photo framework ios 8

问题

I have just created a new photo album with this code:

 [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^
     {
         //Checks for App Photo Album and creates it if it doesn't exist
         PHFetchOptions *fetchOptions = [PHFetchOptions new];
         fetchOptions.predicate = [NSPredicate predicateWithFormat:@"title == %@", @"ChameleonSensors"];
         PHFetchResult *fetchResult = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeAlbum subtype:PHAssetCollectionSubtypeAlbumRegular options:fetchOptions];

         if (fetchResult.count == 0)
         {
             //Create Album
             PHAssetCollectionChangeRequest *albumRequest = [PHAssetCollectionChangeRequest creationRequestForAssetCollectionWithTitle:@"ChameleonSensors"];
         }

     }

      completionHandler:^(BOOL success, NSError *error)
     {
         NSLog(@"Log here...");

         if (!success) {
             NSLog(@"Error creating album: %@", error);
         }else{
             NSLog(@"Perfecto");
         }
     }];

This is ok, but now I need to save photos in this photo album.

I´m using objective-c and photo framework.

thank you

回答1:

you should add assets to albumRequest

    //Create Album
    PHAssetCollectionChangeRequest *albumRequest = [PHAssetCollectionChangeRequest creationRequestForAssetCollectionWithTitle:@"ChameleonSensors"];
    PHAssetChangeRequest *createImageRequest = [PHAssetChangeRequest creationRequestForAssetFromImage:[UIImage imageNamed:@"test"]];
    [albumRequest addAssets:@[createImageRequest.placeholderForCreatedAsset]];

来源：https://stackoverflow.com/questions/34022388/save-image-to-a-specific-photo-album-with-photo-framework-ios-8