Implement deletion of an item.

[crousselle]

No description provided.

[JesseScott]

I've implemented the changes in this request manually, and would recommend the following method in your delegate to actually handle the deletion of the asset:

- (void)removeItemAtIndex:(NSInteger)index { MHGalleryItem *item = [self itemForIndex:index]; NSURL *assetURL = [NSURL URLWithString:item.URLString]; if (assetURL == nil) { return; }
PHFetchResult *result = [PHAsset fetchAssetsWithALAssetURLs:@[assetURL] options:nil]; if (result.count > 0) { PHAsset *phAsset = result.firstObject; if ((phAsset != nil) && ([phAsset canPerformEditOperation:PHAssetEditOperationDelete])) { [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{ [PHAssetChangeRequest deleteAssets:@[phAsset]]; } completionHandler:^(BOOL success, NSError *error){ if ((!success) && (error != nil)){ NSLog(@"Error deleting asset: %@", [error description]); } }]; } } }

[crousselle]

@JesseScott My local implementation of removeItemAtIndex:(NSInteger)index does not deal with any PHAsset but with some model specific to my application.
I implemented this as a delegate callback so that people can handle the removal no matter what the objects they are using.
The datasource deletion is just here to maintain the data presented by the controller (IE the galleryItems array in this case).