public BooksPage(MainPage mainPage)
{
this.MainPage = mainPage;
BindingContext = new BooksIncrementalView(BooksManager.Categories.Values.FirstOrDefault());
InitializeComponent();
}
async void OnPickerSelectedItem(object sender, EventArgs e)
{
BooksIncrementalView booksListIncrementalView = null;
string selectedCategory = listPicker.Items[listPicker.SelectedIndex];
string listName = BooksManager.GetListNameByCategory(selectedCategory);
booksListIncrementalView = new BooksIncrementalView(listName);
BindingContext = booksListIncrementalView;
booksListIncrementalView.LoadMoreItemsCommand.Execute(null);
}
protected override void OnAppearing()
{
base.OnAppearing();
BooksIncrementalView vm = BindingContext as BooksIncrementalView;
vm.LoadMoreItemsCommand.Execute(null);
foreach (string category in BooksManager.Categories.Keys)
{
listPicker.Items.Add(category);
}
}