キーボードがポップインすると、TextFieldは非表示になります

debugcn 投稿 Dev

Wubbalubbadubdub

import 'package:e_expense/home.dart';
import 'package:flutter/material.dart';

class SignUpPage extends StatefulWidget {
 @override
  _SignUpState createState() => _SignUpState();
 }

class _SignUpState extends State<SignUpPage> {
 @override
 Widget build(BuildContext context) {
   return Scaffold(
     resizeToAvoidBottomPadding: false,
     appBar: AppBar(
      iconTheme: IconThemeData(
        color: Colors.green,
      ),
      centerTitle: true,
      title: Text(
        "Welcome to E-Expense",
        style: TextStyle(
            fontWeight: FontWeight.bold,
            fontFamily: 'Montserrat',
            color: Colors.green),
      ),
      elevation: 0.0,
      backgroundColor: Color(0x00000000).withOpacity(0),
    ),
    body: Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: <Widget>[
        Flexible(
          fit: FlexFit.loose,
          child: Container(
            child: Stack(
              children: <Widget>[
                Container(
                  padding: EdgeInsets.fromLTRB(15.0, 50.0, 0.0, 0.0),
                  child: Text(
                    "Signup",
                    style: TextStyle(
                      fontSize: 80.0,
                      fontWeight: FontWeight.bold,
                    ),
                  ),
                ),
                Container(
                  padding: EdgeInsets.fromLTRB(270.0, 50.0, 0.0, 0.0),
                  child: Text(
                    ".",
                    style: TextStyle(
                      color: Colors.green,
                      fontSize: 80.0,
                      fontWeight: FontWeight.bold,
                    ),
                  ),
                )
              ],
            ),
          ),
        ),
        Container(
          padding: EdgeInsets.only(top: 35.0, left: 20.0, right: 20.0),
          child: Column(
            children: <Widget>[
              TextField(
                decoration: InputDecoration(
                  labelText: 'USER NAME',
                  labelStyle: TextStyle(
                    fontFamily: 'Montserrat',
                    fontWeight: FontWeight.bold,
                    color: Colors.grey,
                  ),
                  focusedBorder: UnderlineInputBorder(
                    borderSide: BorderSide(
                      color: Colors.green,
                    ),
                  ),
                ),
              ),
              SizedBox(height: 10.0),
              TextField(
                decoration: InputDecoration(
                  labelText: 'EMAIL',
                  labelStyle: TextStyle(
                    fontFamily: 'Montserrat',
                    fontWeight: FontWeight.bold,
                    color: Colors.grey,
                  ),
                  focusedBorder: UnderlineInputBorder(
                    borderSide: BorderSide(
                      color: Colors.green,
                    ),
                  ),
                ),
              ),
              SizedBox(height: 10.0),
              TextField(
                decoration: InputDecoration(
                  labelText: 'PASSWORD',
                  labelStyle: TextStyle(
                    fontFamily: 'Montserrat',
                    fontWeight: FontWeight.bold,
                    color: Colors.grey,
                  ),
                  focusedBorder: UnderlineInputBorder(
                    borderSide: BorderSide(
                      color: Colors.green,
                    ),
                  ),
                ),
              ),
              SizedBox(height: 10.0),
              TextField(
                decoration: InputDecoration(
                  labelText: 'REPEAT PASSWORD',
                  labelStyle: TextStyle(
                    fontFamily: 'Montserrat',
                    fontWeight: FontWeight.bold,
                    color: Colors.grey,
                  ),
                  focusedBorder: UnderlineInputBorder(
                    borderSide: BorderSide(
                      color: Colors.green,
                    ),
                  ),
                ),
              ),
              SizedBox(height: 40.0),
              ButtonBar(
                alignment: MainAxisAlignment.end,
                children: <Widget>[
                  FlatButton(
                      onPressed: () {},
                      child: Text(
                        'CANCEL',
                        style: TextStyle(
                          fontFamily: 'Montserrat',
                          fontWeight: FontWeight.normal,
                          color: Colors.black,
                        ),
                      )),
                  RaisedButton(
                    onPressed: () {
                      Navigator.of(context).push(MaterialPageRoute(
                          builder: (BuildContext context) => HomePage(),
                          fullscreenDialog: false));
                    },
                    color: Colors.green,
                    child: Text(
                      'SIGNUP',
                      style: TextStyle(
                        fontFamily: 'Montserrat',
                      fontSize: 15.0),

                    ),
                    textColor: Colors.white,
                  )
                ],
              )
            ],
          ),
        ),
      ],
    ));
 }
}

こんにちは、これが私の最初のフラッターアプリです。私は、テキストフィールドがほとんどないサインアップページを作成しようとしています。すべてが良さそうですが、テキストフィールドのソフトキーボードをクリックすると、ファイルされたテキストが表示されて非表示になります（添付の画像を参照してください）

diegoveloper

いくつかの変更：

resizeToAvoidBottomPaddingtrueに設定
Flexibleウィジェットを削除します

最初のColumn内側を包むSingleChildScrollView

 @override
  Widget build(BuildContext context) {
    return Scaffold(
        resizeToAvoidBottomPadding: true,
        appBar: AppBar(
          iconTheme: IconThemeData(
            color: Colors.green,
          ),
          centerTitle: true,
          title: Text(
            "Welcome to E-Expense",
            style: TextStyle(
                fontWeight: FontWeight.bold,
                fontFamily: 'Montserrat',
                color: Colors.green),
          ),
          elevation: 0.0,
          backgroundColor: Color(0x00000000).withOpacity(0),
        ),
        body: SingleChildScrollView(
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: <Widget>[
              Container(
                child: Stack(
                  children: <Widget>[
                    Container(
                      padding: EdgeInsets.fromLTRB(15.0, 50.0, 0.0, 0.0),
                      child: Text(
                        "Signup",
                        style: TextStyle(
                          fontSize: 80.0,
                          fontWeight: FontWeight.bold,
                        ),
                      ),
                    ),
                    Container(
                      padding: EdgeInsets.fromLTRB(270.0, 50.0, 0.0, 0.0),
                      child: Text(
                        ".",
                        style: TextStyle(
                          color: Colors.green,
                          fontSize: 80.0,
                          fontWeight: FontWeight.bold,
                        ),
                      ),
                    )
                  ],
                ),
              ),
              Container(
                padding: EdgeInsets.only(top: 35.0, left: 20.0, right: 20.0),
                child: SingleChildScrollView(
                  child: Column(
                    children: <Widget>[
                      TextField(
                        decoration: InputDecoration(
                          labelText: 'USER NAME',
                          labelStyle: TextStyle(
                            fontFamily: 'Montserrat',
                            fontWeight: FontWeight.bold,
                            color: Colors.grey,
                          ),
                          focusedBorder: UnderlineInputBorder(
                            borderSide: BorderSide(
                              color: Colors.green,
                            ),
                          ),
                        ),
                      ),
                      SizedBox(height: 10.0),
                      TextField(
                        decoration: InputDecoration(
                          labelText: 'EMAIL',
                          labelStyle: TextStyle(
                            fontFamily: 'Montserrat',
                            fontWeight: FontWeight.bold,
                            color: Colors.grey,
                          ),
                          focusedBorder: UnderlineInputBorder(
                            borderSide: BorderSide(
                              color: Colors.green,
                            ),
                          ),
                        ),
                      ),
                      SizedBox(height: 10.0),
                      TextField(
                        decoration: InputDecoration(
                          labelText: 'PASSWORD',
                          labelStyle: TextStyle(
                            fontFamily: 'Montserrat',
                            fontWeight: FontWeight.bold,
                            color: Colors.grey,
                          ),
                          focusedBorder: UnderlineInputBorder(
                            borderSide: BorderSide(
                              color: Colors.green,
                            ),
                          ),
                        ),
                      ),
                      SizedBox(height: 10.0),
                      TextField(
                        decoration: InputDecoration(
                          labelText: 'REPEAT PASSWORD',
                          labelStyle: TextStyle(
                            fontFamily: 'Montserrat',
                            fontWeight: FontWeight.bold,
                            color: Colors.grey,
                          ),
                          focusedBorder: UnderlineInputBorder(
                            borderSide: BorderSide(
                              color: Colors.green,
                            ),
                          ),
                        ),
                      ),
                      SizedBox(height: 40.0),
                      ButtonBar(
                        alignment: MainAxisAlignment.end,
                        children: <Widget>[
                          FlatButton(
                              onPressed: () {},
                              child: Text(
                                'CANCEL',
                                style: TextStyle(
                                  fontFamily: 'Montserrat',
                                  fontWeight: FontWeight.normal,
                                  color: Colors.black,
                                ),
                              )),
                          RaisedButton(
                            onPressed: () {
                              Navigator.of(context).push(MaterialPageRoute(
                                  builder: (BuildContext context) => null,
                                  fullscreenDialog: false));
                            },
                            color: Colors.green,
                            child: Text(
                              'SIGNUP',
                              style: TextStyle(
                                  fontFamily: 'Montserrat', fontSize: 15.0),
                            ),
                            textColor: Colors.white,
                          )
                        ],
                      )
                    ],
                  ),
                ),
              ),
            ],
          ),
        ));
  }

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