meincantor-app/lib/Settings/Pages/dev_settings.dart

import 'package:flutter/material.dart';
import 'package:material_design_icons_flutter/material_design_icons_flutter.dart';
import 'package:shared_preferences/shared_preferences.dart';

import '../../login.dart';

class DevSettings extends StatelessWidget {
  const DevSettings({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: const Text("Entwickler-Einstellungen"),
          centerTitle: true,
        ),
        body: ListView(
          padding: const EdgeInsets.fromLTRB(20, 20, 20, 20),
          children: [
            Padding(
                padding: const EdgeInsets.fromLTRB(0, 0, 0, 0),
                child: TextField(
                    decoration: const InputDecoration(
                      icon: Icon(MdiIcons.keyOutline),
                      border: OutlineInputBorder(),
                      labelText: 'MeinCantor API-Schlüssel',
                    ),
                    onSubmitted: (String value) async {
                      SharedPreferences prefs =
                          await SharedPreferences.getInstance();
                      String apiKey = value;
                      await prefs.setString('api_key', apiKey);
                      final snackBar = SnackBar(
                          content:
                              Text('Neuer API-Schlüssel gesetzt: $apiKey'));
                      ScaffoldMessenger.of(context).showSnackBar(snackBar);
                    }
                    )
            ),
            const Divider(),
            Padding(
                padding: const EdgeInsets.fromLTRB(0, 0, 0, 0),
                child: OutlinedButton(
                  onPressed: () async {
                    Navigator.push(
                      context,
                      MaterialPageRoute(builder: (context) => Login()),
                    );
                  },
                  child: const Text("Benutzerdaten neu laden"),
                )
            )
          ],
        )
    );
  }
}