Flutter onClosing callback for showModalBottomSheet

Question

I have a showModalBottomSheet like the below, which I understand to inherit from BottomSheet (right?)

      showModalBottomSheet

        

Answer 1

This is tested and verified on 28-01-2021

showBottomSheet(
  backgroundColor: Colors.black.withOpacity(0.5),
  context: context,
  builder: (context) {
    return Container(//your sheet code here);      
  },
).closed.whenComplete(() {
 //do whatever you want after closing the bottom sheet
});