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Fixing load more issue during flip switches.

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This commit is contained in:
Burak Kaan Köse
2024-12-31 14:28:28 +01:00
parent de268d1168
commit 64c556a337
1 changed files with 18 additions and 16 deletions
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34
Wino.Calendar.ViewModels/CalendarPageViewModel.cs
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@@ -227,6 +227,8 @@ namespace Wino.Calendar.ViewModels
DateTime? loadingDisplayDate = null, DateTime? loadingDisplayDate = null,
CalendarLoadDirection calendarLoadDirection = CalendarLoadDirection.Replace) CalendarLoadDirection calendarLoadDirection = CalendarLoadDirection.Replace)
{ {
isLoadMoreBlocked = calendarLoadDirection == CalendarLoadDirection.Replace;
// This is the part we arrange the flip view calendar logic. // This is the part we arrange the flip view calendar logic.
/* Loading for a month of the selected date is fine. /* Loading for a month of the selected date is fine.
@@ -504,28 +506,28 @@ namespace Wino.Calendar.ViewModels
if (isLoadMoreBlocked) return; if (isLoadMoreBlocked) return;
// Send the loading message initiated by the app. _ = LoadMoreAsync();
if (SelectedDateRangeIndex == DayRanges.Count - 1)
{
// Load next, starting from the end date.
_ = LoadMoreAsync(CalendarLoadDirection.Next);
}
else if (SelectedDateRangeIndex == 0)
{
// Load previous, starting from the start date.
_ = LoadMoreAsync(CalendarLoadDirection.Previous);
}
} }
private async Task LoadMoreAsync(CalendarLoadDirection direction) private async Task LoadMoreAsync()
{ {
Debug.WriteLine($"Loading {direction} items.");
try try
{ {
await _calendarLoadingSemaphore.WaitAsync(); await _calendarLoadingSemaphore.WaitAsync();
await RenderDatesAsync(CalendarInitInitiative.App, calendarLoadDirection: direction);
// Depending on the selected index, we'll load more dates.
// Day ranges may change while the async update is in progress.
// Therefore we wait for semaphore to be released before we continue.
// There is no need to load more if the current index is not in ideal position.
if (SelectedDateRangeIndex == DayRanges.Count - 1)
{
await RenderDatesAsync(CalendarInitInitiative.App, calendarLoadDirection: CalendarLoadDirection.Next);
}
else if (SelectedDateRangeIndex == 0)
{
await RenderDatesAsync(CalendarInitInitiative.App, calendarLoadDirection: CalendarLoadDirection.Previous);
}
} }
catch (Exception) catch (Exception)
{ {