Android ARCore animation start problem

[windofny1]

Hi! I faced a problem with starting animation for loaded .sdf file.

It's loaded using this peace of code:

            var builder = ModelRenderable.InvokeBuilder();
            var javaClass = Java.Lang.Class.FromType(builder.GetType());
            var methods = javaClass.GetMethods();
            var method = methods[11];
            method.Invoke(builder, Platform.CurrentActivity, Resource.Raw.CoinModel);
            builder.Build((m) =>
            { 
                if (m.AnimationDataCount > 0)
                {
                    var d = m.GetAnimationData(0);  
                    ModelAnimator ma = new ModelAnimator(d, m); 
                    ma.Start();
                    
                }
            });

SFB file contains only one animation - and it's exist - m.AnimationDataCount==1, but when Start method called - there is exception rised:
Java.Lang.IllegalStateException: 'Cannot cast 'com.google.ar.sceneform.rendering.AnimationData$1$1' to
'com.google.ar.sceneform.animation.ModelAnimationData'

Why 'com.google.ar.sceneform.animation.ModelAnimationData' ? In Java ModelAnimationData is inside 'com.google.ar.sceneform.rendering', in .NET also right:
[Register("getAnimationData", "(I)Lcom/google/ar/sceneform/rendering/AnimationData;", "GetGetAnimationData_IHandler")]
public virtual AnimationData GetAnimationData(int index);

Maybe anybody faced this problem too ?

Xamarin.Android.SceneForm.Animation 1.17.1

[windofny1]

Also, if try to load .glb file, then it's can not find any animation
m.AnimationDataCount==0

   var builder = ModelRenderable.InvokeBuilder();
            var javaClass = Java.Lang.Class.FromType(builder.GetType()); 
            var methods = javaClass.GetMethods();
            var model = RenderableSource
                .InvokeBuilder()
                .SetSource(Platform.CurrentActivity, Android.Net.Uri.Parse(path), RenderableSource.SourceType.Glb) // Or .gltf
                .Build();  
            var method = methods[13]; 
            var resultingData = method.
              Invoke(builder, Platform.CurrentActivity, model); 
            Node n = new Node()
            {
                LocalPosition = new Google.AR.Sceneform.Math.Vector3(0, 0, 0)
            };  
            builder.Build(m =>
            {
                if (m.AnimationDataCount > 0)
                {         
                    ModelAnimator ma = new ModelAnimator(m.GetAnimationData(0), m);
                    ma.Start();
                }
                n.Renderable = m;  
            }); 

[Prabakaran Ramasamy]

windofny1 I am facing the same issue animation, did you get any solution?

[windofny1]

I am facing the same issue animation, did you get any solution?

Hi! No, I' didn't find solution for this problem, animation just not working )
Think that maybe we must look at Unity for Augmented reality or wait for MAUI resolve this problem.
If You are interesting in this theme at time of working on this project I'am created two videos about this, maybe it help with some things:
https://youtu.be/tnPFNXws0WE
https://youtu.be/Um759k2gHko