chore(android): sticky notification service

android/app/src/main/java/com/vernu/sms/services/StickyNotificationService.java

@@ -0,0 +1,82 @@
+package com.vernu.sms.services;
+
+import android.app.*;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.IBinder;
+import android.provider.Telephony;
+import android.util.Log;
+import android.widget.Toast;
+
+import androidx.core.app.NotificationCompat;
+
+import com.vernu.sms.R;
+import com.vernu.sms.activities.MainActivity;
+import com.vernu.sms.receivers.SMSBroadcastReceiver;
+
+public class StickyNotificationService extends Service {
+
+    private static final String TAG = "StickyNotificationService";
+    private final BroadcastReceiver receiver = new SMSBroadcastReceiver();
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        Log.i(TAG, "Service onBind " + intent.getAction());
+        return null;
+    }
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        Log.i(TAG, "Service Started");
+
+
+        IntentFilter filter = new IntentFilter();
+        filter.addAction(Telephony.Sms.Intents.SMS_RECEIVED_ACTION);
+        filter.addAction(android.telephony.TelephonyManager.ACTION_PHONE_STATE_CHANGED);
+        registerReceiver(receiver, filter);
+
+        Notification notification = createNotification();
+        startForeground(1, notification);
+
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        Log.i(TAG, "Received start id " + startId + ": " + intent);
+        return START_STICKY;
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+//        unregisterReceiver(receiver);
+        Log.i(TAG, "StickyNotificationService destroyed");
+        Toast.makeText(this, "Service destroyed", Toast.LENGTH_SHORT).show();
+    }
+
+    private Notification createNotification() {
+        String notificationChannelId = "stickyNotificationChannel";
+
+        NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
+        NotificationChannel channel = null;
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
+            channel = new NotificationChannel(notificationChannelId, notificationChannelId, NotificationManager.IMPORTANCE_HIGH);
+            channel.enableVibration(false);
+            channel.setShowBadge(false);
+            notificationManager.createNotificationChannel(channel);
+
+            Intent notificationIntent = new Intent(this, MainActivity.class);
+            PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_IMMUTABLE | PendingIntent.FLAG_UPDATE_CURRENT);
+
+            Notification.Builder builder = new Notification.Builder(this, notificationChannelId);
+            return builder.setContentTitle("TextBee is running").setContentText("TextBee is running in the background.").setContentIntent(pendingIntent).setOngoing(true).setSmallIcon(R.drawable.ic_launcher_foreground).build();
+        } else {
+            NotificationCompat.Builder builder = new NotificationCompat.Builder(this, notificationChannelId);
+            return builder.setContentTitle("TextBee is running").setContentText("TextBee is running in the background.").setOngoing(true).setSmallIcon(R.drawable.ic_launcher_foreground).build();
+        }
+
+    }
+}