Hive Update

ValueListenableBuilder(
            valueListenable: Hive.box('balance').listenable(),
            builder: (context, box, widget) {
              return Align(
                alignment: Alignment.topCenter,
                child: Container(
                  margin: const EdgeInsets.only(top: 10),
                  child: ElevatedButton(
                    onPressed: () {
                      showDialog(
                        context: context,
                        builder: (BuildContext context) {
                          return AlertDialog(
                            scrollable: true,
                            title: Container(
                              alignment: Alignment.center,
                              child: Text('Jumlah'),
                            ),
                            content: Padding(
                              padding: const EdgeInsets.all(5.0),
                              child: Form(
                                child: Column(
                                  children: <Widget>[
                                    TextFormField(
                                      controller: balanceController,
                                      decoration: InputDecoration(
                                        labelText: 'Saldo',
                                        icon: Icon(Icons.money_sharp),
                                      ),
                                      keyboardType: TextInputType.number,
                                    ),
                                  ],
                                ),
                              ),
                            ),
                            actions: [
                              ElevatedButton(
                                child: Text("Submit"),
                                onPressed: () {
                                  balanceModel.putAt(
                                    0,
                                    Balance(
                                      value: int.parse(balanceController.text),
                                    ),
                                  );
                                  Navigator.pop(context);
                                },
                                style: ElevatedButton.styleFrom(
                                  primary: kBlueColor,
                                  shadowColor: kTransparentColor,
                                  fixedSize: Size(maxWidth * 9 / 10, 50),
                                ),
                              ),
                            ],
                          );
                        },
                      );
                    },
                    child: Text(
                      'Saldo: ${balanceValue.value.toString()}',
                      style: whiteTextStyle.copyWith(
                        fontSize: 18,
                        fontWeight: bold,
                      ),
                    ),
                    style: ElevatedButton.styleFrom(
                      primary: kPrimaryColor,
                      shadowColor: kTransparentColor,
                      fixedSize: Size(maxWidth * 9 / 10, 50),
                      shape: RoundedRectangleBorder(
                        borderRadius: BorderRadius.circular(14),
                      ),
                    ),
                  ),
                ),
              );
            },
          ),