InterstitialAdConfig interstitialAdConfig = 
        new InterstitialAdConfig.Builder()
                .topIcon(R.drawable.bz_ic_checked_circle)
                .titleText("지금 바로 참여하고 포인트 받기")
                .textColor(android.R.color.white)
                .layoutBackgroundColor(R.color.colorPrimaryDark)
                .build();

final InterstitialAdHandler interstitialAdHandler = new InterstitialAdHandlerFactory()
        .create("YOUR_INTERSTITIAL_UNIT_ID", InterstitialAdHandler.Type.Dialog);
interstitialAdHandler.show(context, interstitialAdConfig);