android application วิธีการใช้ Timer ให้สามารถทำงานแม้หน้าจอดับ

 timer = new Timer();
            timer.schedule(new TimerTask() {

                public void run() {

                    double lat = gps.getLatitude();
                    double lng = gps.getLongitude();
                   

                    try {

                        Connection con = connectionClass.CONN();
                        String query = "INSERT INTO dbo.Tracking (Latitude, Longitude, Date, SpeedKmH ) VALUES ('" + lat + "','" +  lng + "', CURRENT_TIMESTAMP, '" + mySpeed + "' )";
                        Statement stmt = con.createStatement();
                        ResultSet rs = stmt.executeQuery(query);

                        while (rs.next()) {
                        }

                    } catch (Exception e) {
                        e.printStackTrace();
                    }

                }
            }, 0, 5000);