public async void AddSubreddit()
{
string sub = await _dialog.ShowInputAsync("Add new Subreddit", "Please enter subreddit name");
if (string.IsNullOrEmpty(sub))
{
return;
}
if (!sub.Contains("/r/"))
{
sub = "/r/" + sub;
}
var source = new WallpaperSource {
Query = sub, Source = Source.Reddit
};
await _db.AddSource(source);
Sources.Add(source);
}