Yazılım Flutter klavye hatası nasıl düzelir?

class Mobile_Login extends StatefulWidget {
  const Mobile_Login({Key? key}) : super(key: key);
  _Mobile_LoginState createState() => _Mobile_LoginState();
}

class _Mobile_LoginState extends State<Mobile_Login> {
  final _formKey = GlobalKey<FormState>();
  bool isgozukme = true;
  @override
  Widget build(BuildContext context) {
    return Scaffold(
        resizeToAvoidBottomInset: true,
        body: Form(
            key: _formKey,
            child: Scaffold(
                body: Container(
                    child: Column(children: [
              SizedBox(height: 100),
              Center(
                child: Text(
                  "BlockMedia",
                  style: TextStyle(fontSize: 45, fontWeight: FontWeight.w400),
                ),
              ),
              SizedBox(height: 30),
              //////////////
              Container(
                width: 350,
                child: Theme(
                  data: new ThemeData(
                    primaryColor: Colors.red,
                    primaryColorDark: Colors.black,
                  ),
                  child: TextFormField(
                    keyboardType: TextInputType.emailAddress,
                    validator: (value) {
                      if (value == null ||
                          value.isEmpty ||
                          !value.contains('@') ||
                          !value.contains('.com') ||
                          value.length < 8) {
                        return 'E-posta gerekli';
                      } else if (value.contains(' ')) {
                        return "E-posta'da boşluk olamaz ";
                      }
                      return null;
                    },
                    decoration: new InputDecoration(
                      labelText: "E-posta",
                      fillColor: Colors.black,
                      border: new OutlineInputBorder(
                        borderRadius: new BorderRadius.circular(5.0),
                        borderSide: new BorderSide(),
                      ),
                      //fillColor: Colors.green
                    ),
                    style: new TextStyle(
                      fontFamily: "Poppins",
                    ),
                  ),
                ),
              ),
              SizedBox(height: 7),
              /////////////
              Container(
                width: 350,
                child: TextFormField(
                  obscureText: isgozukme,
                  keyboardType: TextInputType.visiblePassword,
                  validator: (value) {
                    if (value == null || value.length < 8) {
                      return 'Şifre gerekli';
                    }
                    return null;
                  },
                  decoration: new InputDecoration(
                    labelText: "Password",
                    fillColor: Colors.white,
                    border: new OutlineInputBorder(
                      borderRadius: new BorderRadius.circular(5.0),
                      borderSide: new BorderSide(),
                    ),
                    suffixIcon: InkWell(
                      onTap: _togglePasswordView,
                      child: Icon(Icons.visibility),
                    ),
                  ),
                ),
              ),
              SizedBox(height: 25),
              ElevatedButton(
                child: Container(
                    decoration: new BoxDecoration(
                      color: Colors.blue,
                      borderRadius: BorderRadius.circular(5),
                    ),
                    width: 200,
                    height: 50,
                    child: Center(
                        child: Text("GirisYap",
                            style:
                                TextStyle(fontSize: 25, color: Colors.white)))),
                onPressed: () {
                  if (_formKey.currentState!.validate()) {
                    Navigator.push(context,
                        MaterialPageRoute(builder: (context) => Home()));
                  }
                },
              ),
              SizedBox(height: 25),
              Center(
                child: Wrap(
                  children: <Widget>[
                    //SizedBox(width: 55),
                    Text("Hesabın yok mu?",
                        style: TextStyle(color: Colors.black, fontSize: 20)),
                    TextButton(
                      child: Text("Üye Ol",
                          style: TextStyle(color: Colors.blue, fontSize: 20)),
                      onPressed: () {
                        Navigator.push(
                            context,
                            MaterialPageRoute(
                                builder: (context) => KullaniciAdi()));
                      },
                    ),
                  ],
                ),
              )
            ])))));
  }

  void _togglePasswordView() {
    setState(() {
      isgozukme = !isgozukme;
    });
  }
}