public async Task OnNavigatedToAsync(object parameter, NavigationMode mode, IDictionary<string, object> state)
{
if (state.Any())
{
Sub = JsonConvert.DeserializeObject<SubredditItem>((string)state["sub"]);
Images = IncrementalSubredditGallery.fromJson((string)state["images"]);
state.Clear();
}
else
{
if (mode == NavigationMode.Back)
{
if (galleryMetaInfo == null)
{
galleryMetaInfo = BootStrapper.Current.SessionState["GalleryInfo"] as GalleryMetaInfo;
Images = galleryMetaInfo?.Gallery as IncrementalSubredditGallery;
var sub = (await Reddits.SearchSubreddits(Images.Subreddit)).First(s => s.Data.DisplayName == Images.Subreddit);
Sub = new SubredditItem(sub);
}
ImageSelectedIndex = galleryMetaInfo?.SelectedIndex ?? 0;
}
else
{
Activate(parameter);
}
}
await Task.CompletedTask;
}
private View GetSubredditView(int position, SubredditItem item, View convertView)
{
View ret = convertView ?? Activity.LayoutInflater.Inflate(Resource.Layout.Tmpl_SubredditItem, null);
ret.FindViewById<TextView>(Resource.Id.TitleTextView).Text = item.Title;
ret.FindViewById<TextView>(Resource.Id.SubtitleTextView).Text = $"/r/{item.Url}";
return ret;
}
public async Task RemoveSubreddit(SubredditItem subreddit)
{
subreddit.IsFavorited = false;
Subreddits.Remove(Subreddits.Where(s => s.Url == subreddit.Url).First());
await SaveSubreddits();
}
public async Task AddSubreddit(SubredditItem subreddit)
{
subreddit.IsFavorited = true;
Subreddits.Insert(0, subreddit);
await SaveSubreddits();
}
protected void NavigateToSub(SubredditItem sub)
{
string navigationParamName = "Subreddit";
StateHelper.SessionState[navigationParamName] = sub;
navigationService.NavigateTo(PageKeyHolder.SubGalleryPageKey, navigationParamName);
}
private void BindRedditView(CachingViewHolder holder, SubredditItem item, int position)
{
holder.FindCachedViewById<TextView>(Resource.Id.TitleTextView).Text = item.Title.Replace("&", "&");
holder.FindCachedViewById<TextView>(Resource.Id.SubtitleTextView).Text = $"/r/{item.Url} • {item.Subscribers} Subscribers";
var addButton = holder.FindCachedViewById<View>(Resource.Id.AddButton);
var addButtonVisibilityBinding = new Binding<bool, ViewStates>(item, () => item.IsFavorited, addButton, () => addButton.Visibility).ConvertSourceToTarget((flag) => flag ? ViewStates.Gone : ViewStates.Visible);
holder.DeleteBinding(nameof(addButtonVisibilityBinding));
holder.SaveBinding(nameof(addButtonVisibilityBinding), addButtonVisibilityBinding);
//addButton.SetCommand("Click", Vm.ToggleFavorite, item);
var checkButton = holder.FindCachedViewById<View>(Resource.Id.CheckButton);
var checkButtonVisibilityBinding = new Binding<bool, ViewStates>(item, () => item.IsFavorited, checkButton, () => checkButton.Visibility).ConvertSourceToTarget((flag) => !flag ? ViewStates.Gone : ViewStates.Visible);
holder.DeleteBinding(nameof(checkButtonVisibilityBinding));
holder.SaveBinding(nameof(checkButtonVisibilityBinding), checkButtonVisibilityBinding);
//checkButton.SetCommand("Click", Vm.ToggleFavorite, item);
var toggleContainer = holder.FindCachedViewById<View>(Resource.Id.ToggleContainer);
toggleContainer.SetCommand("Click", Vm.ToggleFavorite, item);
}
