创建后台服务以始终侦听 firebase 数据库的最佳方法是什么？

Question

我听说过JobScheduler、WorkerManager、IntentService、AlarmManager 等服务类型。但是我很困惑选择最佳方法来满足各种用例的要求，例如重启、终止应用程序、强制停止

Answer 1

如果您希望服务在后台长时间保持运行，那么粘性服务是一个好的开始。基本上您将创建一个 class 来扩展service class 并且您可以使用 START_STICKY 结果将其长期保持运行。

public class MyService extends Service {
   @Nullable
   @Override
   public IBinder onBind(Intent intent) {
      return null;
   }

   @Override
   public int onStartCommand(Intent intent, int flags, int startId) {
      Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();
      //this commandresult makes the service a sticky service
      return START_STICKY;
   }

   //you can create a class that runs on a timer or a loop 
   // inside this service and it will continue running until the OS or user kills it
   // create a timer then query your database inside this class and send out
   //notifications accordingly

   @Override
   public void onDestroy() {
      super.onDestroy();
      Toast.makeText(this, "Service Destroyed", Toast.LENGTH_LONG).show();
   }
}

来源：https://www.tutorialspoint.com/android/android_services.htm

创建后台服务以始终侦听 firebase 数据库的最佳方法是什么？

What is the best way to create background service to listen firebase database always?

android

firebase-realtime-database

android-service