floatingActionButton: FloatingActionButton(
backgroundColor: Colors.lightBlueAccent,
child: Icon(Icons.add),
onPressed: () {
showModalBottomSheet(
context: context,
isScrollControlled: true,
builder: (context) => SingleChildScrollView(
child: Container(
padding: EdgeInsets.only(
bottom: MediaQuery.of(context).viewInsets.bottom),
child: AddTaskScreen()),
),
);
},
),