LocationPlugin.java

package com.your.example;

import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.Service;
import android.content.Intent;
import android.content.IntentFilter; // Add this import
import android.net.Uri;
import android.os.Build;
import android.os.Handler;
import android.os.IBinder;
import android.os.PowerManager;
import android.provider.Settings;
import android.util.Log;
import android.widget.Toast;
import androidx.annotation.Nullable;
import androidx.core.app.NotificationCompat;

public class LocationPlugin extends Service {

    public static int number = 0;
    private final Handler handler = new Handler();
    private ServiceMessageReceiver receiver; // Declare the receiver

    private Runnable sendData = new Runnable() {
        public void run() {
            number++;
            send(number);
            Log.d("LocationPlugin", "number is: " + number);
            // Show number on screen
            Toast.makeText(LocationPlugin.this, "Current number: " + number, Toast.LENGTH_SHORT).show();
            handler.postDelayed(this, 5000); // Sends every 5 seconds
        }
    };

    public void send(int num) {
        Log.d("LocationPlugin", "Sending number: " + num);
        Intent sendIntent = new Intent();
        sendIntent.setAction("com.your.example.MESSAGE"); // Ensure this matches the action registered in Unity
        sendIntent.putExtra("message", num); // Ensure the key matches the one used in Unity
        sendBroadcast(sendIntent);
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.d("LocationPlugin", "Service started.");

        createNotificationChannel();
        Notification notification = new NotificationCompat.Builder(this, "LocationPluginChannel")
                .setContentTitle("Exampple Service")
                .setContentText("Running...") // Minimal notification text
                .setSmallIcon(android.R.drawable.ic_dialog_info)
                .setOngoing(true) // Keeps the notification ongoing
                .setVisibility(NotificationCompat.VISIBILITY_SECRET) // Hidden from lock screen
                .setPriority(NotificationCompat.PRIORITY_LOW) // Low priority
                .build();

        startForeground(1, notification); // Start the service in the foreground

        handler.postDelayed(sendData, 1000); // Start sending data after 1 second

        // Register the broadcast receiver
        registerReceiver();

        // Prompt user to disable battery optimizations for your app
        checkBatteryOptimization();

        return START_REDELIVER_INTENT; // Ensure the last Intent is redelivered
    }

    private void registerReceiver() {
        receiver = new ServiceMessageReceiver(); // Initialize the receiver
        IntentFilter filter = new IntentFilter("com.your.example.MESSAGE"); // Ensure this matches
        registerReceiver(receiver, filter); // Register the receiver
    }

    private void unregisterReceiver() {
        if (receiver != null) {
            unregisterReceiver(receiver); // Unregister the receiver
            receiver = null; // Clear the reference
        }
    }

    private void checkBatteryOptimization() {
        Intent intent = new Intent();
        String packageName = getPackageName();
        PowerManager pm = (PowerManager) getSystemService(POWER_SERVICE);
        if (pm != null && !pm.isIgnoringBatteryOptimizations(packageName)) {
            intent.setAction(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS);
            intent.setData(Uri.parse("package:" + packageName));

            // Add FLAG_ACTIVITY_NEW_TASK to the intent
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Toast.makeText(this, "Service stopped", Toast.LENGTH_LONG).show();
        handler.removeCallbacks(sendData); // Stop sending data
        unregisterReceiver(); // Unregister the receiver

        // Restart the service if it gets destroyed
        Intent restartServiceIntent = new Intent(getApplicationContext(), LocationPlugin.class);
        startService(restartServiceIntent);
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null; // Not using binding in this service
    }

    // This method creates a notification channel for the foreground service
    private void createNotificationChannel() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            NotificationChannel serviceChannel = new NotificationChannel(
                    "LocationPluginChannel",
                    "Location Plugin Service Channel",
                    NotificationManager.IMPORTANCE_LOW // Set to low importance
            );
            // Ensure the notification will not show on the lock screen
            serviceChannel.setLockscreenVisibility(Notification.VISIBILITY_SECRET);

            NotificationManager manager = getSystemService(NotificationManager.class);
            if (manager != null) {
                manager.createNotificationChannel(serviceChannel);
            }
        }
    }
}