public bool OnDrag(AViews.View v, DragEvent e)
{
switch (e.Action)
{
case DragAction.Started:
break;
case DragAction.Entered:
System.Diagnostics.Debug.WriteLine($"DragAction.Entered from {v.GetType()}");
if (!(v is AWidget.ListView))
{
var dragItem = (DragItem)e.LocalState;
var targetPosition = InsertOntoView(v, dragItem);
dragItem.Index = targetPosition;
// Keep a list of items that has translation so we can reset
// them once the drag'n'drop is finished.
_translatedItems.Add(v);
_listView.Invalidate();
}
break;
case DragAction.Location:
//_currentPosition = (int)e.GetY();
//System.Diagnostics.Debug.WriteLine($"DragAction.Location from {v.GetType()} => {_currentPosition}");
break;
case DragAction.Exited:
System.Diagnostics.Debug.WriteLine($"DragAction.Entered from {v.GetType()}");
if (!(v is AWidget.ListView))
{
var positionEntered = GetListPositionForView(v);
var item1 = _listAdapter.GetItem(positionEntered);
System.Diagnostics.Debug.WriteLine($"DragAction.Exited index {positionEntered}");
}
break;
case DragAction.Drop:
System.Diagnostics.Debug.WriteLine($"DragAction.Drop from {v.GetType()}");
//}
break;
case DragAction.Ended:
if (!(v is AWidget.ListView))
{
return(false);
}
System.Diagnostics.Debug.WriteLine($"DragAction.Ended from {v.GetType()}");
var mobileItem = (DragItem)e.LocalState;
mobileItem.View.Visibility = ViewStates.Visible;
foreach (var view in _translatedItems)
{
view.TranslationY = 0;
}
_translatedItems.Clear();
if (_element.ItemsSource is IOrderable orderable)
{
orderable.ChangeOrdinal(mobileItem.OriginalIndex, mobileItem.Index);
}
break;
}
return(true);
}
public bool OnDrag(AViews.View view, AViews.DragEvent e)
{
switch (e.Action)
{
case AViews.DragAction.Started:
break;
case AViews.DragAction.Entered:
System.Diagnostics.Debug.WriteLine($"DragAction.Entered from {view.GetType()}");
if (!(view is AWidget.ListView))
{
var dragItem = (DragItem)e.LocalState;
var targetPosition = InsertOntoView(view, dragItem);
dragItem.Index = targetPosition;
// Keep a list of items that has translation so we can reset
// them once the drag'n'drop is finished.
translatedItems.Add(view);
listView.Invalidate();
}
break;
case AViews.DragAction.Location:
break;
case AViews.DragAction.Exited:
System.Diagnostics.Debug.WriteLine($"DragAction.Entered from {view.GetType()}");
if (!(view is AWidget.ListView))
{
var positionEntered = GetListPositionForView(view);
System.Diagnostics.Debug.WriteLine($"DragAction.Exited index {positionEntered}");
}
break;
case AViews.DragAction.Drop:
System.Diagnostics.Debug.WriteLine($"DragAction.Drop from {view.GetType()}");
break;
case AViews.DragAction.Ended:
System.Diagnostics.Debug.WriteLine($"DragAction.Ended from {view.GetType()}");
if (!(view is AWidget.ListView))
{
return(false);
}
var mobileItem = (DragItem)e.LocalState;
mobileItem.View.Visibility = AViews.ViewStates.Visible;
foreach (var v in translatedItems)
{
v.TranslationY = 0;
}
translatedItems.Clear();
if (element.ItemsSource is IOrderableCollection orderable)
{
orderable.ChangeOrder(mobileItem.OriginalIndex, mobileItem.Index);
}
break;
}
return(true);
}