Hello UnityAnswers!

I'm building an Android app with Unity and a custom Activity. This Activity is already working well with a UnityPlayer and a CameraPreview. (The CameraPreview extends SurfaceView and implements SurfaceHolder.Callback and Camera.PreviewCallback to draw the camera view behind Unity.)

Now I want to do something similar with a MapView behind Unity. According to the Android docs, "A MapView can only be constructed (or inflated) by a MapActivity," so my plugin Activity is now a MapActivity. The trick here appears to be that the Activity's MapView must be an android.maps.MapView, so it can't also be a SurfaceView.

My question is, how can I get the effect of having Unity "punch through" the MapView as it does with the CameraPreview, while I can't make the MapView a SurfaceView as I have done with the CameraPreview? If the same technique can't be applied for a MapView, then is there some way to "scrape" the MapView and draw it onto a Plane in Unity?

Thank you in advance for any assistance!

Terrance Cohen, Ogmento, Inc.

Here's a bit of code for reference:

  public class MyActivity extends MapActivity
    implements VideoUser
  {
    private CameraPreview cameraPreview;
    private UnityPlayer unityPlayer;
    MapView mapView;
    ...

  class CameraPreview extends SurfaceView
    implements SurfaceHolder.Callback, Camera.PreviewCallback
  {
    SurfaceHolder surfaceHolder;
    Camera camera;
    VideoUser videoUser;
    ...