@Override
  public final void onXWalkInitCompleted() {

    setContentView(R.layout.xwview_transparent_layout);
    StringBuffer mess = new StringBuffer();
    mess.append("Test Purpose: \n\n")
        .append(
            "Check XWalkView's transparent feature whether display the view under the webview.\n\n")
        .append("Expected Result:\n\n")
        .append("Test passes if you can see button view & blue imageview");
    new AlertDialog.Builder(this)
        .setTitle("Info")
        .setMessage(mess.toString())
        .setPositiveButton("confirm", null)
        .show();
    mXWalkView = (XWalkView) findViewById(R.id.xwalkview_transparent);
    mXWalkView.setZOrderOnTop(true);
    mXWalkView.setBackgroundColor(0);
    mXWalkView.load("http://www.baidu.com/", null);
  }