تعديل البيانات flutter

السلام عليكم ورحمة الله وبركاته 

تحيه طيبه للجميع.

اقوم ببرمجة صفحة تعديل البيانات من قبل المستخدم المستخدم من خلال هذا الصفحة قادر على تعديل بياناته + الصورة 

الان تغير الصورة شغال ميه ميه ولكن لدي مشكلة بيانات الحقول لا تتغير ولا تعطي اي استجابة الا في حالة وحده اذا كنت عامل اختيار لصورة يعني يجب ان احدث الصورة من اجل تحديث الحقول لم استطيع ايجاد السبب ابد يجب ان اكود قارد على تعديل اوتحديث الحقول بدون تحديث الصورة

ياليت اذا احد لديه فكره وخبره في فلاتر يساعدني

هذا كود الصفحة كامل

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:http/http.dart' as http;
import 'dart:async';
import 'dart:convert';
import 'MyPreferences.dart';
import 'dart:io';
import 'package:image_picker/image_picker.dart';
class Update extends StatefulWidget {
  var getid;
  Update({Key key, this.getid}) : super(key: key);
  @override
  _UpdateState createState() => new _UpdateState();
}

class _UpdateState extends State<Update> {
  bool visibilityController = true;
  MyPreferences _myPreferences = MyPreferences();
  var getid;
  Future<File> file;
  String status = '';
  String base64Image;
  File tmpFile;
  String errMessage = 'Error Uploading Image';

  var data;
  String uploadEndPoint;
  var _username= "";
  var _phone = "";
  var _password = "";
  var image ="";
var extradata="";

 // var _genderController = new TextEditingController();
  var _phoneController = new TextEditingController();
  var _firstnameController = new TextEditingController();
  var _lastnameController = new TextEditingController();
  var _extradataController = new TextEditingController();
  chooseImage() {
    setState(() {
      file = ImagePicker.pickImage(source: ImageSource.gallery);
      visibilityController = false;
    });
    setStatus('');
  }

  setStatus(String message) {
    setState(() {
      status = message;

    });
  }



  Widget showImage() {
    return FutureBuilder<File>(
      future: file,
      builder: (BuildContext context, AsyncSnapshot<File> snapshot) {
        if (snapshot.connectionState == ConnectionState.done &&
            null != snapshot.data) {
          tmpFile = snapshot.data;
          base64Image = base64Encode(snapshot.data.readAsBytesSync());

          return Flexible(
            child: Card(
              child: SizedBox(
                width: 400.0,
                height: 300.0,

              child: Image.file(
                snapshot.data,
                fit: BoxFit.cover,
              ),
            ),
            ),
          );

        } else if (null != snapshot.error) {
          return const Text(
            'Error Picking Image',
            textAlign: TextAlign.center,
          );
        } else {
          return const Text(
            '',
            textAlign: TextAlign.center,
          );
        }
      },

    );

  }
  Future<String> _ShowDialog(String msg) async {
    return showDialog<String>(
      context: context,
      barrierDismissible: false, // user must tap button!
      builder: (BuildContext context) {
        return new AlertDialog(
          title: new Text('Rewind and remember'),
          content: new SingleChildScrollView(
            child: new ListBody(
              children: <Widget>[
                new Text(msg),
              ],
            ),
          ),
          actions: <Widget>[
            new FlatButton(
              child: new Text('Close'),
              onPressed: () {
                Navigator.of(context).pop();
              },
            ),
          ],
        );
      },
    );
  }

  void _editData() async {
    //var date = new DateTime.now().toString();
    String NameImage =DateTime.now().millisecondsSinceEpoch.toString();
    var url = 'http://xxxxxxxxxxx/ModifyProfile.php';

    var response = await http.post(url, body: {

      "id": widget.getid.toString(),

      "name": _firstnameController.text,
     "phone": _phoneController.text,
     "password": _lastnameController.text,
      "NameImage": NameImage,
      "image": base64Image,
      "extradata": _extradataController.text,

    });

    if (response.statusCode == 200) {

      _ShowDialog("Updated Successfully");
    } else {
      _ShowDialog("Updated Failer");
    }

    //onEditedAccount();
    //print(_adresseController.text);
  }

  _fetchData() async {

    final url =
        "http://xxxxxxxxxxx/ConsultProfile.php?id=${widget.getid}";
    final response = await http.get(url);
    if (response.statusCode == 200) {
      final map = json.decode(response.body);
      final videosMap = map["result"];

      setState(() {

        this.data = videosMap;
        _username = data[0]['name'];
        _phone = data[0]['phone'];
        _password = data[0]['password'];
        image = data[0]['image'];
        extradata = data[0]['extradata'];
      //  _gender = data[0]['gender'];
        print(data);
      });
    }
  }

  @override
  void initState() {
    super.initState();
    _fetchData();

  }

  @override
  Widget build(BuildContext context) {
   
    return new Scaffold(
        appBar: AppBar(
          title: Text("Update Profile"),
          backgroundColor: const Color(0xFFf6c626), // status bar color
          brightness: Brightness.light,
        ),
        body: new Center(
          child: data == null
              ? new CircularProgressIndicator()
              : new ListView(
                  children: <Widget>[
          Card(
          child: new Column(
          children: <Widget>[


           Container(
            child: Visibility(
            visible: visibilityController,
            child: Card(
                child: new Column(
                    children: <Widget>[
                      Image.network(image, width: 385,height: 300,
                        fit: BoxFit.cover,
                      ),
                    ]
                )
            ),
          ),
        ),


    Card(
    child: showImage(),
    ),
    OutlineButton(
    onPressed: chooseImage,
    child: Text('Choose Image'),
    ),



            ],
          ),
        ),


Card (
    child: Column(
        children: <Widget>[
          SizedBox(
            height: 10.0,
          ),
    Container(
    margin: EdgeInsets.all(4),

        child: TextField(
          maxLength: 10,
          decoration: InputDecoration(
              border: OutlineInputBorder(),
              labelText: 'Name',
              filled: true,
              hintText: _username),
          controller: _firstnameController,
        ),

    ),
          SizedBox(
            height: 5.0,
          ),
        Container(
            margin: EdgeInsets.all(4),
                          child: TextField(
                            maxLength: 8,
                            decoration: InputDecoration(
                                border: OutlineInputBorder(),
                                labelText: 'Phone number',
                                filled: true,
                                hintText: _phone),
                            controller: _phoneController,
                          ),
        ),
          SizedBox(
            height: 5.0,
          ),
        Container(
            margin: EdgeInsets.all(4),
                          child: TextField(
                            maxLength: 8,
                            decoration: InputDecoration(
                              border: OutlineInputBorder(),
                              labelText: 'Password',
                                filled: true,
                                hintText: _password),
                            controller: _lastnameController,
                          ),

        ),
          SizedBox(
            height: 5.0,
          ),
          SizedBox(
            height: 5.0,
          ),
          Container(
            margin: EdgeInsets.all(4),
            child: TextField(
              maxLength: 8,
              decoration: InputDecoration(
                  border: OutlineInputBorder(),
                  labelText: 'Password',
                  filled: true,
                  hintText: extradata),
              controller: _extradataController,
            ),

          ),
          SizedBox(
            height: 5.0,
          ),

       ]

    )

),

                          SizedBox(
                            width: double.infinity,
                            child: new FlatButton(
                              child: const Text('Update'),color:  const Color(0xFFf6c626),
                              padding: EdgeInsets.fromLTRB(100, 18, 100, 18),
                              onPressed: ()
                              {
                                _editData();

                              },
                            ),
                          ),

                          SizedBox(
                            height: 10.0,
                          ),
                        ],
                      ),



                ),
        );
  }
}