How to use

getPresentationDisplay

method

in

android.support.v7.media.MediaRouter$RouteInfo

@Override
public void updatePresentation() {
  // Get the current route and its presentation display.
  Display presentationDisplay = mRoute != null ? mRoute.getPresentationDisplay() : null;
  // Dismiss the current presentation if the display has changed.
  if (mPresentation != null && mPresentation.getDisplay() != presentationDisplay) {
    Log.i(TAG, "Dismissing presentation because the current route no longer "
        + "has a presentation display.");
    mPresentation.dismiss();
    mPresentation = null;
  }
  // Show a new presentation if needed.
  if (mPresentation == null && presentationDisplay != null) {
    Log.i(TAG, "Showing presentation on display: " + presentationDisplay);
    mPresentation = new DemoPresentation(getContext(), presentationDisplay);
    mPresentation.setOnDismissListener(mOnDismissListener);
    try {
      mPresentation.show();
    } catch (WindowManager.InvalidDisplayException ex) {
      Log.w(TAG, "Couldn't show presentation!  Display was removed in "
           + "the meantime.", ex);
      mPresentation = null;
    }
  }
  updateContents();
}