code: public String getResourcePath()
      {
          switch (resourceType)
          {
              case ANDROID_ASSETS: return assetPath;
  
              case ANDROID_RESOURCE: return resourceFilePath;
  
              case LINUX_FILESYSTEM: return filePath;
  
              case NETWORK: return url.getPath();
  
              case INPUT_STREAM: return inputStreamName;
  
              default: return null;
          }
      }
docs: Returns the full path of the resource file with extension.
  
  @return path of the GVRAndroidResource. May return null if the
  resource is not associated with any file