BaseApplication.java

public class BaseApplication extends Application {
    @Override
    public void onCreate() {
        super.onCreate();

        // Observer to detect if the app is in background or foreground.
        AppLifeCycleObserver lifeCycleObserver
                = new AppLifeCycleObserver(getApplicationContext());

        // Adding the above observer to process lifecycle
        ProcessLifecycleOwner.get()
                .getLifecycle()
                .addObserver(lifeCycleObserver);
    }
}