title: Flutter screen appears empty when adding text field
body: <p>I was making a flutter app there was a text in it and it was working but after that when I added a text field I ran the app and I found that the app is empty.</p>
  
  <p>this is my code : </p>
  
  <pre><code>import 'package:flutter/material.dart';
  
  void main() {
    runApp(new MaterialApp(
      home: new MyApp(),
    ));
  }
  
  class MyApp extends StatelessWidget {
    @override
    Scaffold c = Scaffold(
      body: Padding(
        padding: const EdgeInsets.only(top:30.0),
        child: new Row(
          children: &lt;Widget&gt;[
            new TextField(
              decoration: InputDecoration(
                  border: InputBorder.none,
                  hintText: 'Please enter a search term'
              ),
            ),
            new Text(
              'Text',
              style: TextStyle(
                fontSize: 20.0
              ),
            ),
          ],
        ),
      ),
    );
  
    @override
    Widget build(BuildContext context) {
      return c;
    }
  }
  </code></pre>