How to create android notification to keep foreground service alive?

Questions & Answers
1

Hi community,

I have been trying to implement a foreground service for android using native code. I have no issue with creating the service itself, but I need to create a notification to inform the user, otherwise the system kills the service after 5 seconds.

I tried this code to create the notification:

NotificationCompat.Builder builder = new NotificationCompat.Builder(this, CHANNEL_ID)
        .setSmallIcon(R.drawable.notification_icon)
        .setContentTitle(textTitle)
        .setContentText(textContent)
        .setPriority(NotificationCompat.PRIORITY_DEFAULT);

But it causes the following error. Apparently Unity cannot find the NotificationCompat class.

06-27 11:30:59.643  9748  9777 E Unity   : AndroidJavaException: java.lang.NoClassDefFoundError: Failed resolution of: Landroidx/core/app/NotificationCompat$Builder;
06-27 11:30:59.643  9748  9777 E Unity   : java.lang.NoClassDefFoundError: Failed resolution of: Landroidx/core/app/NotificationCompat$Builder;

Does anybody know an example of how to start a foreground service in android from unity? Or a recent example of how to implement notifications? Most examples on the internet are too old and don’t work for android version of API 26 (Oreo) or above.

Regards,
David

3

Hi,

yes. Actually I hired a freelancer on fiverr to do it for me. The Plugin he made didn’t work properly but it helped me to spot the errors I made. It was worth the money afer I spent more than a week without any luck.

Mostly these were errors in the gradle files and unity setup.

Here the link to the fiverr page of that guy: https://www.fiverr.com/koradiyaabhay/develop-android-native-plugin-for-unity?source=order_page_summary_gig_link_title&funnel=9ea84578-4cc3-4263-96fe-fc8e23bc7f8e

2

Did you have any luck creating a Foreground Service plugin?