/// <summary>
/// Bind this class to the goto top button in the parent view
/// </summary>
/// <param name="parentView"></param>
/// <param name="listView"></param>
public void BindControl(View parentView, AbsListView listView)
{
if (parentView != null)
{
fab = parentView.FindViewById <FloatingActionButton>(Resource.Id.goto_top_button);
if (fab != null)
{
// Hide the button initially
fab.Visibility = ViewStates.Gone;
// Hook into the listview's scroll events
listView.SetOnScrollListener(this);
// Scroll back to the top when the button is clicked
fab.Click += (sender, e) =>
{
if (listView.FirstVisiblePosition > 20)
{
listView.SetSelection(20);
}
listView.SmoothScrollToPosition(0);
};
}
}
else
{
fab = null;
}
}
