In Flutter, bottomSheetDialog's radius is not working - flutter

Question

To implement flutter bottomSheetDialog with dynamic height, I wrote a code like this.
void showCustomBottomSheetDialog(Widget body, BuildContext context) {
showModalBottomSheet(
isScrollControlled: true,
context: context,
builder: (BuildContext ctx) {
return Wrap(
children: [
Column(
children: [
Container(
height: 24.sp,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(10.0),
topRight: Radius.circular(10.0),
),
),
),
body,
],
),
],
);
},
);
}
showCustomBottomSheetDialog(
Container(
child: Column(
children: [
TextFormField(),
Text('asdfasdfds'),
Text('asdfasdfds'),
Text('asdfasdfds'),
],
),
),
context,
);
But with this code, the displayed bottomSheet did not have a rounded corner...
Could you tell me what is a problem of my code...?

Answer 1

create rounded corner manually
eg:
showModalBottomSheet(
isScrollControlled: true,
context: context,
backgroundColor: Colors.transparent,
builder: (contex) {
return Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius:
const BorderRadius.vertical(top: Radius.circular(18))),
child: Column(
children: []
....
also you can wrap it with DraggableScrollableSheet to make it scrollable widget

Answer 2

This is because the Container with rounded corner is inside the Column widget.
For this to work ,lift up the Container.
Code now:
showModalBottomSheet(
isScrollControlled: true,
context: context,
builder: (BuildContext ctx) {
return Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(10.0),
topRight: Radius.circular(10.0),
),
),
child: Column(...)
),
},
);

Answer 3

Actually, we have shape property on showModalBottomSheet and can be used to make rounded corner, like
showModalBottomSheet(
isScrollControlled: true,
context: context,
shape: const RoundedRectangleBorder( //this
borderRadius: BorderRadius.only(
topLeft: Radius.circular(24),
topRight: Radius.circular(24),
),
),
More about showModalBottomSheet