// define channel attributes (name, description, and id)

public static final String NOTIFICATION_CHANNEL_ID = "SomeChannelId"

public static final String NOTIFICATION_CHANNEL_NAME = "UserFacingChannelName"

public static final String NOTIFICATION_CHANNEL_DESCRIPTION = "User facing description of the channel"

// create notification channel

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

    NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    NotificationChannel notificationChannel = notificationManager.getNotificationChannel(NOTIFICATION_CHANNEL_ID);

    if (notificationChannel == null) {

        // only create it if it hasn't been created already

        notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, NOTIFICATION_CHANNEL_NAME, NotificationManager.IMPORTANCE_HIGH);

        notificationChannel.setDescription(NOTIFICATION_CHANNEL_DESCRIPTION);

        notificationChannel.enableLights(true);

        notificationChannel.enableVibration(true);

        notificationChannel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);

        notificationManager.createNotificationChannel(notificationChannel);

    }

}

// pass Flurry the channel ID while setting up Marketing Module

FlurryMarketingOptions flurryMarketingOptions = new FlurryMarketingOptions.Builder()

                ...

                .withDefaultNotificationChannelId(NOTIFICATION_CHANNEL_ID)

                ...

                .build();