How to receive data from showBottomSheet-CodePudding

I found a solution with Navigator.pop(context, data) in showModalBottomSheet

this is solution

 showModalBottomSheet(
                      context: context,
                      builder: (BuildContext context) {
                        return Padding(
                          padding: EdgeInsets.fromLTRB(0, AppBar().preferredSize.height, 0, 0),
                          child: CountryPicker(
                            countryCodes: countryCodes,
                          ),
                        );
                      },
                    ).then((value) {
                      setState(() {
                        countryCodeIndex = value;
                      });
                    });

but i can't use method then in showBottomSheet

this is error that i got

The method 'then' isn't defined for the type 'PersistentBottomSheetController'.
Try correcting the name to the name of an existing method, or defining a method named 'then

How i can receive data from showBottomSheet

CodePudding user response：

Using showModalBottomSheetyou can just use then() or await

When you have to use showBottomSheet() it returns a PersistentBottomSheetController that has a property closed of type Future<T> that can also be used with then()or await. Check API documentation on that: https://api.flutter.dev/flutter/material/PersistentBottomSheetController-class.html

Edit: I did some further research: Seems like showBottomSheet is not working as expected. There's an issue (https://github.com/flutter/flutter/issues/66837) where it's stated that Navigator.pop(context) with data is not working... So if possible I would recommend to use ``