private void GetTrackersOverView()
        {
            PageTitle.Text = "Health Tracker";
            ContentStackLayout.Children.Clear();
            var view1 = new TrackersOverview();

            ContentStackLayout.Children.Add(view1);
        }
        private async void DownloadDevicesData(TrackersOverview view)
        {
            using (UserDialogs.Instance.Loading("loading"))
            {
                var model = await GetTrackersData();

                var devicesList = model.Readings.Where(opp => opp.ReadingCategory == ReadingCategoryTypeName.FitBit).ToList();
                ContentStackLayout.Children.Clear();
                var view2 = new DevicesTracker(devicesList);
                ContentStackLayout.Children.Add(view2);
            }
        }
        private async void DownloadBiometricsData(TrackersOverview trackersOverview)
        {
            using (UserDialogs.Instance.Loading("loading"))
            {
                var model = await GetTrackersData();

                var healthList = model.Readings.Where(opp => opp.ReadingCategory == ReadingCategoryTypeName.Health).ToList();
                ContentStackLayout.Children.Clear();
                var view2 = new BiometricsView(healthList);
                ContentStackLayout.Children.Add(view2);
            }
        }
        private async void DownloadProgramData(TrackersOverview view)
        {
            using (UserDialogs.Instance.Loading("loading"))
            {
                var model = await GetTrackersData();

                var programList = model.Readings.Where(opp => opp.ReadingCategory == ReadingCategoryTypeName.Custom).ToList();
                ContentStackLayout.Children.Clear();
                var view2 = new ProgramTrackers(programList);
                ContentStackLayout.Children.Add(view2);
            }
        }