كيفية ارسال قيم مربع النص الى الصفحة التالية flutter

السلام عليكم ورحمة الله وبركاته

تحيه طيبه للجميع

اقوم بادخال قيم في مربع النص وبعد الضغط على زر الانتقال ارغب بنقل هذا القيم الى الصفحة التالية واستقبالها في الصفحة التالية

قمت بعدد من المحاولة ولكن الامر لم ينجح 

الان يتم نقل رقم الهاتف من خلال الكود التالي :

 await Navigator.pushNamed(context, '/otpScreen', arguments: '$_dialCode${_contactEditingController.text}');

ولكن كيف ممكن نرسل قيم TextEditingController ايضا مع الرقم

هذا الصفحة الاولى التي ارغب بارسال القيم منها كامل

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:onefrist/testjust/screens/login_screen/widget/country_picker.dart';
import 'package:onefrist/testjust/screens/login_screen/widget/custom_button.dart';
import 'package:onefrist/testjust/screens/otp_screen/otp_screen.dart';

import '../../../LawsOfNewUser.dart';
import '../../../loginpage.dart';


class LoginScreen extends StatefulWidget {
  @override
  _LoginScreenState createState() => _LoginScreenState();
}

class _LoginScreenState extends State<LoginScreen> {
  final _contactEditingController = TextEditingController();
  final nameController = TextEditingController();
  final passwordController = TextEditingController();
  var _dialCode = '';

  //Login click with contact number validation
  Future<void> clickOnLogin(BuildContext context) async {
    if (_contactEditingController.text.isEmpty) {
      showErrorDialog(context, 'Contact number can\'t be empty.');
    } else {
      final responseMessage =
     await Navigator.pushNamed(context, '/otpScreen', arguments: '$_dialCode${_contactEditingController.text}');
      if (responseMessage != null) {
        showErrorDialog(context, responseMessage as String);

      }
    }
  }

  //callback function of country picker
  void _callBackFunction(String name, String dialCode, String flag) {
    _dialCode = dialCode;
  }

  //Alert dialogue to show error and response
  void showErrorDialog(BuildContext context, String message) {
    // set up the AlertDialog
    final CupertinoAlertDialog alert = CupertinoAlertDialog(
      title: const Text('Error'),
      content: Text('\n$message'),
      actions: <Widget>[
        CupertinoDialogAction(
          isDefaultAction: true,
          child: const Text('Yes'),
          onPressed: () {
            Navigator.of(context).pop();
          },
        )
      ],
    );
    // show the dialog
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return alert;
      },
    );
  }

  //build method for UI Representation
  @override
  Widget build(BuildContext context) {
    final screenHeight = MediaQuery.of(context).size.height;
    final screenWidth = MediaQuery.of(context).size.width;
    return Scaffold(
      body: Center(
        child: SingleChildScrollView(
          child: Container(
            padding: const EdgeInsets.all(16.0),
            width: double.infinity,
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.center,
              mainAxisAlignment: MainAxisAlignment.center,
              children: [

                SizedBox(
                  height: screenHeight * 0.05,
                ),
                Image.asset(
                  'assets/images/registration.png',
                  height: screenHeight * 0.3,
                  fit: BoxFit.contain,
                ),
                SizedBox(
                  height: screenHeight * 0.02,
                ),
                const Text(
                  'Login',
                  style: TextStyle(fontSize: 28, color: Colors.black),
                ),
                SizedBox(
                  height: screenHeight * 0.02,
                ),
                const Text(
                  'Enter your mobile number to receive a verification code',
                  textAlign: TextAlign.center,
                  style: TextStyle(
                    fontSize: 18,
                    color: Colors.black,
                  ),
                ),
                SizedBox(
                  height: screenHeight * 0.04,
                ),
                Container(
                  margin: EdgeInsets.symmetric(horizontal: screenWidth > 600 ? screenWidth * 0.2 : 16),
                  padding: const EdgeInsets.all(16.0),
                  decoration: BoxDecoration(
                      color: Colors.white,
                      // ignore: prefer_const_literals_to_create_immutables
                      boxShadow: [
                        const BoxShadow(
                          color: Colors.grey,
                          offset: Offset(0.0, 1.0), //(x,y)
                          blurRadius: 6.0,
                        ),
                      ],
                      borderRadius: BorderRadius.circular(16.0)),
                  child: Column(
                    children: [
                      Container(
                        margin: const EdgeInsets.all(8),
                        padding: const EdgeInsets.symmetric(horizontal: 8.0),
                        height: 45,
                        decoration: BoxDecoration(
                          border: Border.all(
                            color: const Color.fromARGB(255, 253, 188, 51),
                          ),
                          borderRadius: BorderRadius.circular(36),
                        ),
                        child: Row(
                          // ignore: prefer_const_literals_to_create_immutables
                          children: [
                            CountryPicker(
                              callBackFunction: _callBackFunction,
                              headerText: 'Select Country',
                              headerBackgroundColor: Theme.of(context).primaryColor,
                              headerTextColor: Colors.white,
                            ),
                            SizedBox(
                              width: screenWidth * 0.01,
                            ),
                            Expanded(

                              child: TextField(
                                decoration: const InputDecoration(
                                  hintText: 'Contact Number',

                                ),
                                controller: _contactEditingController,
                                keyboardType: TextInputType.number,
                                inputFormatters: [LengthLimitingTextInputFormatter(10)],
                              ),
                            ),

                          ],
                        ),
                      ),
                      const SizedBox(
                        height: 8,
                      ),

                      Container(
                        //    width: 280,
                          padding: EdgeInsets.all(5.0),
                          child: TextField(
                            maxLength: 8,
                            controller: nameController,
                            autocorrect: true,
                            decoration: InputDecoration(
                              prefixIcon:Icon(Icons.account_circle),
                              border: OutlineInputBorder(),
                              labelText: 'Enter_Your_Name_Here',
                            ),
                          )
                      ),



                      CustomButton(clickOnLogin),
                    ],
                  ),
                )
              ],
            ),
          ),
        ),
      ),
    );
  }
}

وهذا الصفحة التاليه التي ارغب باستقبال القيم فيها الان يتم استقبال فقط رقم الهاتف ولكني ارغب باستقبال بيانات TextEditingController المرسلة ايضا

import 'dart:async';
import 'dart:convert';

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

import 'package:http/http.dart' as http;

import 'package:firebase_auth/firebase_auth.dart';
import 'package:pin_entry_text_field/pin_entry_text_field.dart';

// ignore: must_be_immutable
class OtpScreen extends StatefulWidget {

  bool _isInit = true;
  var _contact = '';

  @override
  _OtpScreenState createState() => _OtpScreenState();
}

class _OtpScreenState extends State<OtpScreen> {


  String phoneNo;
  String smsOTP;
  String verificationId;
  String errorMessage = '';
  final FirebaseAuth _auth = FirebaseAuth.instance;
  Timer _timer;

  //this is method is used to initialize data
  @override
  void didChangeDependencies() {
   // print(nameController.text);
    super.didChangeDependencies();
    // Load data only once after screen load
    if (widget._isInit) {
      widget._contact = '${ModalRoute.of(context).settings.arguments as String}';
      generateOtp(widget._contact);
      widget._isInit = false;
    }
  }

  //dispose controllers
  @override
  void dispose() {
    super.dispose();
  }




  //build method for UI
  @override
  Widget build(BuildContext context) {

    final screenHeight = MediaQuery.of(context).size.height;
    final screenWidth = MediaQuery.of(context).size.width;
    return Scaffold(
      body: Center(
        child: SingleChildScrollView(
          child: Container(
            padding: const EdgeInsets.all(16.0),
            width: double.infinity,
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.center,
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                SizedBox(
                  height: screenHeight * 0.05,
                ),
                Image.asset(
                  'assets/images/logo.png',
                  width: screenWidth * 0.7,
                  fit: BoxFit.contain,
                ),
                SizedBox(
                  height: screenHeight * 0.05,
                ),

                SizedBox(
                  height: screenHeight * 0.02,
                ),
                const Text(
                  'Verification',
                  style: TextStyle(fontSize: 28, color: Colors.black),
                ),
                SizedBox(
                  height: screenHeight * 0.02,
                ),

                Text(
                  'Enter A 6 digit number that was sent to ${widget._contact}',
                  textAlign: TextAlign.center,
                  style: const TextStyle(
                    fontSize: 18,
                    color: Colors.black,
                  ),
                ),






                SizedBox(
                  height: screenHeight * 0.04,
                ),
                Container(
                  margin: EdgeInsets.symmetric(horizontal: screenWidth > 600 ? screenWidth * 0.2 : 16),
                  padding: const EdgeInsets.all(16.0),
                  decoration: BoxDecoration(
                      color: Colors.white,
                      // ignore: prefer_const_literals_to_create_immutables
                      boxShadow: [
                        const BoxShadow(
                          color: Colors.grey,
                          offset: Offset(0.0, 1.0), //(x,y)
                          blurRadius: 6.0,
                        ),
                      ],
                      borderRadius: BorderRadius.circular(16.0)),
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.center,
                    mainAxisAlignment: MainAxisAlignment.center,
                    children: [
                      Container(
                        margin: EdgeInsets.only(left: screenWidth * 0.025),
                        child: PinEntryTextField(
                          fields: 6,
                          onSubmit: (text) {
                            smsOTP = text as String;
                          },
                        ),
                      ),


                      SizedBox(
                        height: screenHeight * 0.04,
                      ),
                      GestureDetector(
                        onTap: () {
                          verifyOtp();
                        },
                        child: Container(
                          margin: const EdgeInsets.all(8),
                          height: 45,
                          width: double.infinity,
                          decoration: BoxDecoration(
                            color: const Color.fromARGB(255, 253, 188, 51),
                            borderRadius: BorderRadius.circular(36),
                          ),
                          alignment: Alignment.center,
                          child: const Text(
                            'Verify',
                            style: TextStyle(color: Colors.black, fontSize: 16.0),
                          ),
                        ),
                      ),
                    ],
                  ),
                )
              ],
            ),
          ),
        ),
      ),
    );
  }

  //Method for generate otp from firebase
  Future<void> generateOtp(String contact) async {
    final PhoneCodeSent smsOTPSent = (String verId, [int forceCodeResend]) {
      verificationId = verId;
    };
    try {
      await _auth.verifyPhoneNumber(
          phoneNumber: contact,
          codeAutoRetrievalTimeout: (String verId) {
            verificationId = verId;
          },
          codeSent: smsOTPSent,
          timeout: const Duration(seconds: 60),
          verificationCompleted: (AuthCredential phoneAuthCredential) {},
          verificationFailed: (AuthException exception) {
           // Navigator.pop(context, exception.message);
          });
    } catch (e) {
      handleError(e as PlatformException);
     // Navigator.pop(context, (e as PlatformException).message);
    }
  }

  //Method for verify otp entered by user
  Future<void> verifyOtp() async {
    if (smsOTP == null || smsOTP == '') {
      showAlertDialog(context, 'please enter 6 digit otp');
      return;
    }
    try {
      final AuthCredential credential = PhoneAuthProvider.getCredential(
        verificationId: verificationId,
        smsCode: smsOTP,
      );
      final AuthResult user = await _auth.signInWithCredential(credential);
      final FirebaseUser currentUser = await _auth.currentUser();
      assert(user.user.uid == currentUser.uid);

      Navigator.pushReplacementNamed(context, '/homeScreen');
    } catch (e) {
      handleError(e as PlatformException);
    }
  }

  //Method for handle the errors
  void handleError(PlatformException error) {
    switch (error.code) {
      case 'ERROR_INVALID_VERIFICATION_CODE':
        FocusScope.of(context).requestFocus(FocusNode());
        setState(() {
          errorMessage = 'Invalid Code';
        });
        showAlertDialog(context, 'Invalid Code');
        break;
      default:
        showAlertDialog(context, error.message);
        break;
    }
  }

  //Basic alert dialogue for alert errors and confirmations
  void showAlertDialog(BuildContext context, String message) {
    // set up the AlertDialog
    final CupertinoAlertDialog alert = CupertinoAlertDialog(
      title: const Text('Error'),
      content: Text('\n$message'),
      actions: <Widget>[
        CupertinoDialogAction(
          isDefaultAction: true,
          child: const Text('Ok'),
          onPressed: () {
            Navigator.of(context).pop();
          },
        )
      ],
    );
    // show the dialog
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return alert;
      },
    );
  }

}

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