Basically i want to send latitude and longitude in background it is working fine below Oreo versions but I am stuck in that part. It is working all good. I have added a background JobIntentService it is working fine in Oreo and pie background but when I lock the screen after 2 minutes it disable or stop sending location to my server.
public class LocationService extends JobIntentService implements LocationListener {
static final int JOB_ID = 1000; //Unique job ID.
RequestQueue requestQueue;
DBConnection con;
String Lat, Lng;
public static final int notify = 5000; //interval between two services(Here Service run every 5 Minute)
private Handler mHandler = new Handler(); //run on another Thread to avoid crash
private Timer mTimer = null;
protected LocationManager locationManager;
@Override
public void onCreate() {
super.onCreate();
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
onGetLocation();
if (mTimer != null) // Cancel if already existed
mTimer.cancel();
else
mTimer = new Timer(); //recreate new
mTimer.scheduleAtFixedRate(new LocationService.TimeDisplay(), 0, notify); //Schedule task
}
public LocationService() {
}
public static void enqueueWork(Context context, Intent work) {
enqueueWork(context, LocationService.class, JOB_ID, work);
}
@Override
protected void onHandleWork(@NonNull Intent intent) {
UpdateLocation();
}
public void UpdateLocation()
{
con = new DBConnection(LocationService.this);
if(requestQueue==null) {
requestQueue = Volley.newRequestQueue(getApplicationContext());
requestQueue = Volley.newRequestQueue(getApplicationContext(), new StethoVolleyHurlStack());
}
StringRequest request = new StringRequest(Request.Method.POST,
"https://example.com/api/" + "updatelocation.php", new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d("Response", response.toString() + " " + Lat.toString()+ " " + Lng.toString());
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.d("Response", error.toString());
}
}) {
@Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> map = new HashMap<String, String>();
map.put("userid", con.getusename());
map.put("lat", Lat);
map.put("lng", Lng);
return map;
}
};
requestQueue.add(request);
}
public void onGetLocation() {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);
}
@Override
public void onLocationChanged(Location location) {
Lng=String.valueOf(location.getLongitude());
Lat=String.valueOf(location.getLatitude());
}
class TimeDisplay extends TimerTask {
@Override
public void run() {
// run on another thread
mHandler.post(new Runnable() {
@Override
public void run() {
UpdateLocation();
}
});
}
}
Yes you need to add notification on start you service
public class LocationService extends Service implements CallbackResponseListener, LocationListener {
public void onCreate() {
super.onCreate();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
super.onStartCommand(intent, flags, startId);
Log.e("Service Started", "onStartCommand!");
createNotificationChannel();
startTimer();
return START_STICKY;
}
private void createNotificationChannel() {
// Create the NotificationChannel, but only on API 26+ because
// the NotificationChannel class is new and not in the support library
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
CharSequence name = "Service channel";
String description = "Service channel description";
int importance = NotificationManager.IMPORTANCE_DEFAULT;
NotificationChannel channel = new NotificationChannel("12", name, importance);
channel.setDescription(description);
// Register the channel with the system; you can't change the importance
// or other notification behaviors after this
NotificationManager notificationManager = getSystemService(NotificationManager.class);
notificationManager.createNotificationChannel(channel);
}
Intent notificationIntent = new Intent(getApplicationContext(), MainActivity.class);
PendingIntent intent = PendingIntent.getActivity(getApplicationContext(), 0,
notificationIntent, 0);
Notification notification = new NotificationCompat.Builder(this, "12")
.setContentTitle("Title")
.setContentText("App is running in background for location")
.setSmallIcon(R.drawable.notification_icon).setContentIntent(intent)
.build();
startForeground(2001, notification);
}
@Override
public void onDestroy() {
super.onDestroy();
Log.e("Service EXIT", "ondestroy!");
Intent broadcastIntent = new Intent(getApplicationContext(), LocationBroadcastReceiver.class);
sendBroadcast(broadcastIntent);
stoptimertask();
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
public void startTimer() {
//set a new Timer
try {
timer = new Timer();
//initialize the TimerTask's job
initializeTimerTask();
//schedule the timer, to wake up every 1 second
timer.schedule(timerTask, AppConstants.bgTaskStartDelay,2000); //
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* it sets the timer to print the counter every x seconds
*/
public void initializeTimerTask() {
timerTask = new TimerTask() {
public void run() {
try {
// add your code here for schedule
} catch (Exception e) {
e.printStackTrace();
}
}
};
}
}