class MyApp extends StatefulWidget {
  // This widget is the root of your application.
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String question;
  List<Widget> questions_list = [];
  final textController = TextEditingController();

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text("GPT3 Homework-Assistent"),
          backgroundColor: Color(0xff131C22),
        ),
        body: SafeArea(
          child: Center(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              mainAxisAlignment: MainAxisAlignment.start,
              children: <Widget>[
                Expanded(
                  child: Center(
                    child: Container(
                      width: MediaQuery.of(context).size.width,
                      //height: MediaQuery.of(context).size.height,
                      color: Color(0xff282829),
                      child: ListView(
                        children: questions_list,
                        reverse: true,
                      ),
                    ),
                  ),
                ),
                Container(
                  color: Colors.red,
                  child: Row(
                    mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                    children: <Widget>[
                      Expanded(
                        child: TextField(
                            controller: textController,
                            decoration: InputDecoration(
                              border: OutlineInputBorder(),
                              hintText: 'Stelle eine Frage',
                            ),
                            onChanged: (value) {
                              question = value;
                            }),
                      ),
                      IconButton(
                        onPressed: () {
                          textController.clear();
                          setState(() {
                            questions_list.insert(0, Text(question));
                            print(questions_list);
                          });
                          //addQuestions(questions_list, question);
                        },
                        icon: Icon(Icons.arrow_right),
                      )
                    ],
                  ),
                )
              ],
            ),
          ),
        ),
      ),
    );
  }
}