I just put my bottom sheet in Widget function like this

  Widget earnPoints() {
    double width = MediaQuery.of(context).size.width;
    double height = MediaQuery.of(context).size.height;

    showCupertinoModalBottomSheet(
        context: context,
        builder: (context) {
          return StatefulBuilder(
              builder: (BuildContext context, StateSetter setStatee) {
            return Material(
              child: Container(
                  height: height * 0.9,
                  child: SingleChildScrollView(
                    child: Column(children: []),
                  )),
            );
          });
        });
  }

And its showing error that

The body might complete normally, causing 'null' to be returned, but the return type is a potentially non-nullable type.

I am using return also

CodePudding user response：

also add return before showCupertinoModalBottomSheet()

CodePudding user response：

I believe it's because you aren't returning showCupertinoModelBottomSheet(),

Future<Widget> earnPoints() async{
  double width = MediaQuery.of(context).size.width;
  double height = MediaQuery.of(context).size.height;
  
  return showCupertinoModalBottomSheet(  /// add return here
    context: context,
    builder: (context) {
      return StatefulBuilder(
        builder: (BuildContext context, StateSetter setStatee) {
          return Material(
            child: Container(
              height: height * 0.9,
              child: SingleChildScrollView(
                child: Column(children: []),
              ),
            ),
          );
        }
      );
    }
  );
}