async void Handle_ItemTapped(object sender, ItemTappedEventArgs e)
{
if (e.Item == null)
{
return;
}
TaskViewModel model = e.Item as TaskViewModel;
TaskPage page = new TaskPage(model);
await Navigation.PushAsync(page);
}
async Task <int> AddTask()
{
TaskItem item = new TaskItem();
await TaskManager.UpdateItem(item);
TaskViewModel vm = new TaskViewModel(item);
TaskPage page = new TaskPage(vm);
model.AddNewItem(vm);
await Navigation.PushAsync(page);
return(0);
}