private async void Finish_Clicked(object sender, EventArgs e) { aTimer.Enabled = false; var tour = new Course { courseStart = DateTime.Now.ToString("yyyy-MM-dd"), calories = 555, steps = 4578, maptrack = JsonConvert.SerializeObject(CoursesLocations), user = Settings.UserId }; var issucced = await _restService.CourseAddAsync(tour.calories, tour.steps, tour.maptrack); if (issucced) { //Debug.WriteLine(tour.mapTrack); JArray a = JArray.Parse(Settings.UserCoursesList); a.Add(JToken.FromObject(tour)); Settings.UserCoursesList = a.ToString(); //Debug.WriteLine(Settings.UserCoursesList); await App.Current.MainPage.Navigation.PopModalAsync(); } }