问在最新更新的flutter中的firebase插件后，代码出现了混乱。

EN

final PhoneVerificationCompleted verifiedSuccess = (AuthCredential credential) {

      FirebaseAuth.instance.currentUser().then((user){
        user.getIdToken().then((token) {
        print("Firebase IdToken: " + token);
        centralstate.idToken = token;
      });});


      Future.delayed(const Duration(milliseconds: 2000), () {
        FirebaseAuth.instance.currentUser().then((user) {
          centralstate.uid = user;
          print("user::::$user");
        });

        setState(() {
          _loadingFlag = 0;
        });
      });

      _showSnackBar("Phone number verification successfull");
      Future.delayed(const Duration(milliseconds: 3000), () {
        Navigator.pop(context);
        Navigator.push(
            context, MaterialPageRoute(builder: (context) => SignInGraphQL()));
      });
    };