How to supply Lottie Json with the images it uses?

[urastogi885]

Check these before submitting:

• The issue doesn't involve an Unsupported Feature
• This issue isn't related to another open issue

This issue is:

• Help needed to use a Lottie JSON

Which Version of Lottie are you using?

• Lottie 2.5.13

What Platform are you on?

• iOS

What Language are you in?

• Objective-C

Issue

I am trying to load an animation that uses a PNG image. I found a probable solution that has worked for Lottie 3.0+ users. The solution was provided in #167. I have added the solution below.
I tried to use this by referring the Migration Guide. Unfortunately, I was unable to find a constructor of AnimationView (a.k.a. LOTAnimationView in 2.5.13) similar to as described in the solution below. Please help me provide the image to my animation so that it can render properly.
I was able to this very easily in Android by using the SetImageAssetsFolder and the animation loaded as expected. Is there something similar I can do in iOS?
Note that Lottie Android version used was 4.1.0

Probable Solution found in #167

    public init(with jsonName: String) {
        super.init(frame: .zero)
        let animation = Animation.named(jsonName, bundle: getBundle())
        let imageProvider = BundleImageProvider(bundle: getBundle(), searchPath: nil)
        animationView = AnimationView(animation: animation, imageProvider: imageProvider)
    }

Expected Behavior

The animation should make the image used look like it is hovering in air.

Actual Behavior

Since the animation view cannot find the image, I just see an empty screen.

Code Example

public static void SetAnimationFromSharedResource(this LOTAnimationView animationView, string jsonFileName) {
      LOTComposition composition = LOTAnimationCache.SharedCache().AnimationForKey(jsonFileName);
      if (composition == null) {
        string animJson = <Custom method to get string data from json file>(jsonFileName);
        NSData jsonData = NSData.FromString(animJson);
        NSError error;
        NSDictionary jsonDict = NSJsonSerialization.Deserialize(jsonData, 0, out error) as NSDictionary;
        composition = LOTComposition.AnimationFromJSON(jsonDict);
        LOTAnimationCache.SharedCache().AddAnimation(composition, jsonFileName);
      }
      animationView.SceneModel = composition;
    }
  }

I want to tell the animation view here to find/supply the image. How do I do that?

Animation JSON

Unfortunately, I cannot share the json.