title: Flutter - Keyboard does not appear and does not stay under the chosen field
body: <p>Keyboard is not working properly with <code>TextField</code>.</p>
  
  <p>The code below I put 14 <code>TextField</code>, but when clicking for example in field 14 the keyboard does not appear and it is not below the <code>TextField</code> tapped.</p>
  
  <p>Could you help me with this keyboard problem not showing up and not getting me under the chosen field to be?</p>
  
  <p><a href="https://i.stack.imgur.com/l5oLa.gif" rel="noreferrer"><img src="https://i.stack.imgur.com/l5oLa.gif" alt="enter image description here"></a></p>
  
  <pre><code>import 'package:flutter/material.dart';
  
  void main() {
    runApp(new MaterialApp(home: new HomePage()));
  }
  
  class HomePage extends StatefulWidget {
    @override
    HomePageState createState() =&gt; new HomePageState();
  }
  
  class HomePageState extends State&lt;HomePage&gt; {
    final TextEditingController _controller = new TextEditingController();
  
    @override
    Widget build(BuildContext context) {    
      return new Scaffold(
        body: new Stack(
          children: &lt;Widget&gt;[
            new ListView(
              shrinkWrap: true,
              children: &lt;Widget&gt;[
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 1',
                  ),
                ),
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 2',
                  ),
                ),
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 3',
                  ),
                ),
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 4',
                  ),
                ),
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 5',
                  ),
                ),
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 6',
                  ),
                ),
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 7',
                  ),
                ),
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 8',
                  ),
                ),
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 9',
                  ),
                ),
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 10',
                  ),
                ),
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 11',
                  ),
                ),
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 12',
                  ),
                ),
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 13',
                  ),
                ),
                new TextField(
                  controller: _controller,
                  decoration: new InputDecoration(
                    hintText: 'Type something 14',
                  ),
                ),             
              ],
            )          
          ]
        )
      );
    }
  }
  </code></pre>