Handling StartActivityForResult | OnActivityResult Deprecated in Xamarin Android

MyActivity.cs

  using AndroidX.Activity.Result;
  using AndroidX.Activity.Result.Contract;

  [Activity(Label = "EditImageActivity", MainLauncher = false)]
  public class MyActivity : Activity
  {
    private ActivityResultCallback _activityResultCallback;
    private ActivityResultLauncher _activityResultLauncher;
    public static int _requestCode;
    
    protected override void OnCreate(Bundle bundle)
    {
       base.OnCreate(bundle);
       
      _activityResultCallback = new ActivityResultCallback(this);
      _activityResultLauncher = RegisterForActivityResult(new ActivityResultContracts.StartActivityForResult(), _activityResultCallback);
    } 
    
    private void OpenGallery()
    { 
        //var galleryIntent =..  //create your intent
        _requestCode = "1001";  //flag to handle the multiple intent request 
        _activityResultLauncher.Launch(galleryIntent);
    }
    
     public void MyActivityResultReceived( int resultCode, Intent data)
     {  
          if ((_requestCode == "1001") || (resultCode == (int)Result.Ok))
          {
           //handle the result
          }
      }
    
    class ActivityResultCallback : Java.Lang.Object, IActivityResultCallback
    {
        MyActivity _myActivity;
        public ActivityResultCallback(NotesFragment myActivity)
        {
            _myActivity = myActivity; //initialise the parent activity/fragment here
        }

        public void OnActivityResult(Java.Lang.Object result)
        { 
            var activityResult = result as ActivityResult; 
            _myActivity.MyActivityResultReceived(activityResult.ResultCode, activityResult.Data); //pass the OnActivityResult data to parent class
        }
     }
     
  }