private void RenderSections(IEnumerable <Section> sections, Action moreAction)
{
var root = new RootElement(Title)
{
UnevenRows = Root.UnevenRows
};
foreach (var section in sections)
{
root.Add(section);
}
var elements = root.Sum(s => s.Elements.Count);
//There are no items! We must have filtered them out
if (elements == 0)
{
root.Add(new Section {
new NoItemsElement(NoItemsText)
});
}
if (moreAction != null)
{
var loadMore = new PaginateElement("Load More", "Loading...")
{
AutoLoadOnVisible = true
};
root.Add(new Section {
loadMore
});
loadMore.Tapped += async(obj) =>
{
try
{
await this.DoWorkNoHudAsync(() => Task.Run(moreAction));
if (loadMore.GetImmediateRootElement() != null)
{
var section = loadMore.Parent as Section;
Root.Remove(section, UITableViewRowAnimation.Fade);
}
}
catch (Exception e)
{
Utilities.ShowAlert("Unable to load more!", e.Message);
}
};
}
Root = root;
}
private static ICollection <Section> RenderSections(IEnumerable <Section> sections, Action moreAction)
{
var weakAction = new WeakReference <Action>(moreAction);
ICollection <Section> newSections = new LinkedList <Section>(sections);
if (moreAction != null)
{
var loadMore = new PaginateElement("Load More", "Loading...")
{
AutoLoadOnVisible = true
};
newSections.Add(new Section {
loadMore
});
loadMore.Tapped += async(obj) =>
{
try
{
NetworkActivity.PushNetworkActive();
var a = weakAction.Get();
if (a != null)
{
await Task.Run(a);
}
var root = loadMore.GetRootElement();
root?.Remove(loadMore.Section, UITableViewRowAnimation.Fade);
}
catch (Exception e)
{
AlertDialogService.ShowAlert("Unable to load more!", e.Message);
}
finally
{
NetworkActivity.PopNetworkActive();
}
};
}
return(newSections);
}
