async void RefreshFromUserDataAsync()
{
try
{
IncrementPendingRequestCount(); // show loading
// do async data read
var todaysWeightEntry = await DataService.GetWeightEntryForDate(DateTime.Today.Date);
var goal = await DataService.GetGoal();
// update the UI color (NOTE:: both goal and todaysWeightEntry could be null)
var infoForToday = WeightLogicHelpers.GetTodaysDisplayInfo(goal, todaysWeightEntry);
WindowColorService.ChangeAppBaseColor(infoForToday.ColorToShow);
}
catch (Exception ex)
{
AnalyticsService.TrackFatalError($"{nameof(RefreshFromUserDataAsync)} - an exception occurred.", ex);
// NOTE:: not showing an error here as this is not in response to user action. potentially should show a non-intrusive error banner
}
finally
{
DecrementPendingRequestCount(); // hide loading
}
}
async void RefreshFromUserDataAsync()
{
try
{
IncrementPendingRequestCount(); // show loading
IsWeightListingVisible = false;
PlaceholderText = Constants.Strings.GraphPage_PlaceholderText_Loading; // defaults to 'loading..' as it is seen briefly
// do async data read
var todaysWeightEntry = await DataService.GetWeightEntryForDate(DateTime.Today.Date);
var goal = await DataService.GetGoal();
// update the UI color (NOTE:: both goal and todaysWeightEntry could be null)
var infoForToday = WeightLogicHelpers.GetTodaysDisplayInfo(goal, todaysWeightEntry);
WindowColorService.ChangeAppBaseColor(infoForToday.ColorToShow);
// update the listing of weight entries
var latestWeightEntries = await DataService.GetLatestWeightEntries(Constants.App.WeightListingMaxCount)
.ConfigureAwait(false) as List <WeightEntry>;
IsWeightListingVisible = latestWeightEntries.Count > 0; // will show/hide list and placeholder label
PlaceholderText = IsWeightListingVisible ? string.Empty : Constants.Strings.GraphPage_PlaceholderText_NoEntries;
// create a lookup of success/failure values for weight entries and set on converter (used for showing/hiding checkmark per row)
Dictionary <WeightEntry, bool> successForDateLookup = new Dictionary <WeightEntry, bool>();
foreach (var entry in latestWeightEntries)
{
bool success = WeightLogicHelpers.WeightMetGoalOnDate(goal, entry.Date, entry.Weight);
successForDateLookup.Add(entry, success);
}
CheckmarkVisibilityConverter.SuccessForDateLookup = successForDateLookup;
// NOTE:: Updates to observable collections must happen on UI thread
Device.BeginInvokeOnMainThread(() =>
{
LatestWeightEntries = (latestWeightEntries == null) ?
LatestWeightEntries = new ObservableCollection <WeightEntry>() :
LatestWeightEntries = new ObservableCollection <WeightEntry>(latestWeightEntries);
});
// NOTE:: we limit how many points are graphed as it can be a performance concern if too high, and OxyPlot appears to stop drawing connecting lines beyond ~530 items
int maxGraphPoints = (Device.RuntimePlatform == Device.Android) ? Constants.App.WeightGraphingMaxCount_Android :
Constants.App.WeightGraphingMaxCount;
var limitedEntries = latestWeightEntries.OrderByDescending(x => x.Date).Take(maxGraphPoints).ToList();
RefreshGraphDataModel(limitedEntries, goal);
}
catch (Exception ex)
{
AnalyticsService.TrackFatalError($"{nameof(RefreshFromUserDataAsync)} - an exception occurred.", ex);
// NOTE:: not showing an error here as this is not in response to user action. potentially should show a non-intrusive error banner
}
finally
{
DecrementPendingRequestCount(); // hide loading
}
}
async void RefreshFromUserDataAsync()
{
if (_isFirstStartup)
{
_isFirstStartup = false;
// if we need to show the welcome flow don't bother updating data (will be updated when this page appears again)
if (await ShowWelcomeFlowIfNeeded())
{
return;
}
}
try
{
IncrementPendingRequestCount(); // show loading
// do async data read
var todaysWeightEntry = await DataService.GetWeightEntryForDate(DateTime.Today.Date);
var goal = await DataService.GetGoal();
// get all the info needed to update the UI (NOTE:: both goal and todaysWeightEntry could be null)
var infoForToday = WeightLogicHelpers.GetTodaysDisplayInfo(goal, todaysWeightEntry);
TodaysWeight = infoForToday.TodaysDisplayWeight;
TodaysMessage = infoForToday.TodaysMessage;
HowToEatText = infoForToday.HowToEatMessage;
IsEnterWeightButtonVisible = infoForToday.IsEnterWeightButtonVisible;
IsSetGoalButtonVisible = infoForToday.IsSetGoalButtonVisible;
MainLabelFontSize = SettingsService.WeightUnit == Enumerations.WeightUnitEnum.StonesAndPounds ?
Constants.UI.DailyInfoFontSize_Stones : Constants.UI.DailyInfoFontSize_Normal;
WindowColorService.ChangeAppBaseColor(infoForToday.ColorToShow);
}
catch (Exception ex)
{
AnalyticsService.TrackFatalError($"{nameof(RefreshFromUserDataAsync)} - an exception occurred.", ex);
// NOTE:: not showing an error here as this is not in response to user action. potentially should show a non-intrusive error banner
}
finally
{
DecrementPendingRequestCount(); // hide loading
}
}