// Copyright 2020, the Flutter project authors. Please see the AUTHORS file // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. // ignore_for_file: unused_local_variable import 'package:flutter/material.dart'; import 'services.dart'; // This app doesn't work correctly when the services return null. Try to // uncomment the for-loop and appBar lines below, and note how the new null // safety static analysis immediately flags those lines as errors. class BadMyApp extends StatelessWidget { @override Widget build(BuildContext context) { final localizedAppName = Config.getAppName(); final temperatures = WeatherService.getTemperatures(); var tempWidgets = [ Text('Temperature next 3 days:'), // for (final t in temperatures) Text(t.round().toString()), ]; return MaterialApp( home: Scaffold( // appBar: AppBar(title: Text(localizedAppName)), body: Padding( padding: const EdgeInsets.all(8.0), child: Column( crossAxisAlignment: CrossAxisAlignment.start, children: tempWidgets, ), ), ), ); } }