protected override void ClearUIComponents()
{
UICompletedTodoitem = null;
Content = null;
BtnBack = null;
mData = null;
}
void onDataChanged()
{
Content.DestroyAllChild();
mData.Model.mTodoitem.Where(item => item.Completed).ForEach(item =>
{
UICompletedTodoitem.Instantiate()
.Parent(Content)
.LocalIdentity()
.ApplySelfTo((self) => self.Init(item))
.Show();
});
}