трекер местоположения с помощью firebase - PullRequest
Новая
       154

трекер местоположения с помощью firebase

0 голосов
/ 09 мая 2020

Я разрабатываю приложение, которое отслеживает местоположение устройства и записывает это местоположение в firebase, приложение успешно подключилось к серверу firebase, но нет данных о местоположении устройства. кто-нибудь может найти мне решение для этого? и как просмотреть сохраненные данные в firebase. ниже код, который я использовал в своем проекте

TrackingService. java: 

public class TrackingService extends Service {

    private static final String TAG = TrackingService.class.getSimpleName();

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
            startForeground();
        else
            startForeground(1, new Notification());
        loginToFirebase();
    }

//Create the persistent notification//

    private void startForeground() {
        String NOTIFICATION_CHANNEL_ID = "com.example.location2";
        String channelName = "location2";
        String stop = "stop";
        registerReceiver(stopReceiver, new IntentFilter(stop));
        PendingIntent broadcastIntent = PendingIntent.getBroadcast(
                this, 0, new Intent(stop), PendingIntent.FLAG_UPDATE_CURRENT);
        NotificationChannel chan = new NotificationChannel(NOTIFICATION_CHANNEL_ID, channelName, NotificationManager.IMPORTANCE_NONE);
        chan.setLightColor(Color.BLUE);
        chan.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
        NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        assert manager != null;
        manager.createNotificationChannel(chan);
        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID);
        Notification notification = notificationBuilder.setOngoing(true)
                //.setSmallIcon(R.drawable.icon_1)
                .setContentTitle(getString(R.string.app_name))
                .setContentText(getString(R.string.tracking_enabled_notif))
                .setOngoing(true)
                .setContentIntent(broadcastIntent)
                .setSmallIcon(R.drawable.tracking_enabled)
                .setPriority(NotificationManager.IMPORTANCE_MIN)
                .setCategory(Notification.CATEGORY_SERVICE)
                .build();
        startForeground(2, notification);
    }
    protected BroadcastReceiver stopReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {

//Unregister the BroadcastReceiver when the notification is tapped//

            unregisterReceiver(stopReceiver);

//Stop the Service//

            stopSelf();
        }
    };

    private void loginToFirebase() {

//Authenticate with Firebase, using the email and password we created earlier//

        String email = getString(R.string.test_email);
        String password = getString(R.string.test_password);

//Call OnCompleteListener if the user is signed in successfully//

        FirebaseAuth.getInstance().signInWithEmailAndPassword(
                email, password).addOnCompleteListener(new OnCompleteListener<AuthResult>() {
            @Override
            public void onComplete(Task<AuthResult> task) {

//If the user has been authenticated...//

                if (task.isSuccessful()) {

//...then call requestLocationUpdates//

                    requestLocationUpdates();
                } else {

//If sign in fails, then log the error//

                    Log.d(TAG, "Firebase authentication failed");
                }
            }
        });
    }

//Initiate the request to track the device's location//

    private void requestLocationUpdates() {
        LocationRequest request = new LocationRequest();

//Specify how often your app should request the device’s location//

        request.setInterval(10000);

//Get the most accurate location data available//

        request.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        FusedLocationProviderClient client = LocationServices.getFusedLocationProviderClient(this);
        final String path = getString(R.string.firebase_path);
        int permission = ContextCompat.checkSelfPermission(this,
                Manifest.permission.ACCESS_FINE_LOCATION);

//If the app currently has access to the location permission...//

        if (permission == PackageManager.PERMISSION_GRANTED) {

//...then request location updates//

            client.requestLocationUpdates(request, new LocationCallback() {
                @Override
                public void onLocationResult(LocationResult locationResult) {

//Get a reference to the database, so your app can perform read and write operations//

                    DatabaseReference ref = FirebaseDatabase.getInstance().getReference(path);
                    Location location = locationResult.getLastLocation();
                    if (location != null) {

//Save the location data to the database//

                        ref.setValue(location);
                    }
                }
            }, null);
        }
    }
}

1 Ответ

0 голосов
/ 09 мая 2020

Я не совсем уверен, проблема ли в этом, но скажите, работает ли это.

попробуйте запустить службу следующим образом: 

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        startForegroundService(intent)
    }else{
        startService( intent)

    }
...