I'm using Informatix UltimateListView https://www.b4x.com/android/forum/threads/lib-chargeable-ultimatelistview.22736/
Code :
ulv.SetChildren(ItemID, Children, "show")
ulv.ExpandChildren(ItemID)
If Children => ' (ArrayList) [100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110]'
It work...