public async Task LoadStarredNews()
{
StarredLoading = true;
var list = await _starredCacheHelper.ReadStarredCache();
if (list == null || list.Count <= 0)
{
StarredLoading = false;
return;
}
var mustAdd = new List <NewsModel>();
if (StarredNews != null && StarredNews.Count > 0)
{
foreach (var item in list)
{
var exists = StarredNews.FirstOrDefault(n => n.Title == item.Title);
if (exists == null)
{
mustAdd.Add(item);
}
}
if (mustAdd.Count > 0)
{
list = mustAdd;
}
else
{
return;
}
}
foreach (var item in list)
{
var toAdd = item;
var exists = News.FirstOrDefault(n => n.Title == item.Title);
if (exists != null)
{
toAdd = exists;
}
toAdd.Starred = true;
StarredNews.Add(toAdd);
}
StarredLoading = false;
}
private bool UnstarNews(NewsModel unstarred)
{
if (unstarred == null || !StarredNews.Contains(unstarred))
{
return(false);
}
var result = StarredNews.Remove(unstarred);
unstarred.Starred = false;
if (result)
{
SaveStarredCache();
}
return(result);
}
private async Task <bool> StarNews(NewsModel starred)
{
if (starred == null || StarredNews.Contains(starred))
{
return(false);
}
if (starred.NewsContent == null || starred.NewsContent.Count <= 0)
{
await starred.LoadNewsBody();
}
starred.Starred = true;
StarredNews.Add(starred);
SaveStarredCache();
return(true);
}
private async void SaveStarredCache()
{
var currentList = StarredNews.ToList();
await _starredCacheHelper.SaveStarredCache(currentList);
}
