public T Find(int id)
{
var cached = CachedItems.FirstOrDefault(_ => _.Id == id);
if (cached == null)
{
var item = ItemsProvider.Find(id);
if (item == null)
{
return(null);
}
var index = FetchIndexForItem(item);
if (index == -1)
{
return(null);
}
int pageIndex = index / PageSize;
int pageOffset = index % PageSize;
RequestPage(pageIndex);
return(pages[pageIndex][pageOffset]);
}
return(cached);
}
async Task LoadMoreItemsAsync(bool refresh = false)
{
if (!HasMoreItems && !refresh)
{
IsLoading = false;
return;
}
try
{
if (refresh)
{
PageCount = 1;
Pagination = PaginationParameters.MaxPagesToLoad(1);
}
Views.Main.ActivitiesView.Current?.ShowTopLoadingFollowers();
var result = await InstaApi.UserProcessor.GetUserFollowingByIdAsync(CurrentUser.Pk, Pagination);
PageCount++;
FirstRun = false;
Pagination.MaximumPagesToLoad = 2;
if (!result.Succeeded)
{
IsLoading = false;
if (result.Value == null || result.Value?.Count == 0)
{
Views.Main.ActivitiesView.Current?.HideTopLoadingFollowers();
return;
}
}
if (string.IsNullOrEmpty(result.Value.NextMaxId))
{
HasMoreItems = false;
}
Pagination.NextMaxId = result.Value.NextMaxId;
if (refresh)
{
Items.Clear(); CachedItems.Clear();
}
var userIds = new List <long>();
if (result.Value?.Count > 0)
{
result.Value.ForEach(x =>
{
userIds.Add(x.Pk);
CachedItems.Add(x.ToUserShortFriendship());
});
}
try
{
if (userIds.Count > 0)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async() =>
{
var friendshipStatuses = await InstaApi.UserProcessor.GetFriendshipStatusesAsync(userIds.ToArray());
if (friendshipStatuses.Succeeded)
{
var friends = friendshipStatuses.Value;
friends.ForEach(x =>
{
var t = CachedItems.FirstOrDefault(u => u.Pk == x.Pk);
if (t != null)
{
t.FriendshipStatus = x;
}
});
}
CachedItems.ForEach(x =>
{
if (x.FriendshipStatus != null)
{
if (!x.FriendshipStatus.Following)
{
Items.Add(x);
}
}
});
Views.Main.ActivitiesView.Current?.HideTopLoadingFollowers();
});
}
}
catch
{
Views.Main.ActivitiesView.Current?.HideTopLoadingFollowers();
}
await Task.Delay(1000);
IsLoading = false;
}
catch (Exception ex)
{
FirstRun =
IsLoading = false;
ex.PrintException("FollowingGenerator.LoadMoreItemsAsync");
Views.Main.ActivitiesView.Current?.HideTopLoadingFollowers();
}
}
