Check if photo gallery is empty

Question

I want to load photos from my photo gallery to my UIImageView using Swift. Now I want to check if the gallery is empty or not. What's the best way to do that?

Answer 1

You could use the Photos framework.

To see how many photos there are you can do something like this:

   import Photos

   ...

   PHPhotoLibrary.requestAuthorization { (status) in
       if status == PHAuthorizationStatus.Authorized {
           var result: PHFetchResult = PHAsset.fetchAssetsWithMediaType(.Image, options: nil)
           NSLog("%d", Int(result.count))
       }
   }

If you want Photos and Videos:

 PHPhotoLibrary.requestAuthorization { (status) in
    if status == PHAuthorizationStatus.Authorized {
       let options = PHFetchOptions()
       options.predicate = NSPredicate(format: "mediaType = %i OR mediaType = %i", PHAssetMediaType.Image.rawValue, PHAssetMediaType.Video.rawValue)

       var allPhotos = PHAsset.fetchAssetsWithOptions(options)
    }
 }

You can also look to includeAssetSourceTypes property of PHFetchOptions. You can select TypeUserLibrary, TypeCloudShared or TypeiTunesSynced.