protected override bool HandleControlStateOnTouch(Touch touch)
{
if (!IsEnabled || null == touch)
{
return(false);
}
PointStateType state = touch.GetState(0);
switch (state)
{
case PointStateType.Down:
IsPressed = true;
UpdateState();
return(true);
case PointStateType.Interrupted:
IsPressed = false;
UpdateState();
return(true);
case PointStateType.Up:
{
bool clicked = IsPressed && IsEnabled;
IsPressed = false;
if (!clicked)
{
return(true);
}
if (IsSelectable)
{
if (ParentItemsView as CollectionView)
{
CollectionView colView = ParentItemsView as CollectionView;
switch (colView.SelectionMode)
{
case ItemSelectionMode.SingleSelection:
colView.SelectedItem = IsSelected ? null : BindingContext;
break;
case ItemSelectionMode.MultipleSelections:
var selectedItems = colView.SelectedItems;
if (selectedItems.Contains(BindingContext))
{
selectedItems.Remove(BindingContext);
}
else
{
selectedItems.Add(BindingContext);
}
break;
case ItemSelectionMode.None:
break;
}
}
}
else
{
// Extension : Extension?.SetTouchInfo(touch);
UpdateState();
}
if (clicked)
{
ClickedEventArgs eventArgs = new ClickedEventArgs();
OnClickedInternal(eventArgs);
}
return(true);
}
default:
break;
}
return(base.HandleControlStateOnTouch(touch));
}