This is my main.dar and I got problems:
import 'package:flutter/material.dart';
import 'package:google_fonts/google_fonts.dart';
import 'package:hive_flutter/adapters.dart';
import 'package:pomodoroTimer/1.app_bar_pomodoro/profile/colors.dart';
import 'apilar_codigo/stacked_all.dart';
void main() async {
// initialize hive
await Hive.initFlutter();
// open a box
await Hive.openBox("Habit_Database");
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
// This widget is the root of your application.
#override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
title: 'Flutter Demo',
theme: ThemeData(
textTheme: GoogleFonts.nunitoTextTheme(Theme.of(context).textTheme),
useMaterial3: true,
colorScheme:
ColorScheme.light(primary: ColorsToAPP.selectText)),
home: const StackePages(),
);
}
}
Is there a piece of code that I'm missing out? because I can't run the app
Thanks for any help you can provide
How can I run main.dart without problems?
You are missing the code that will actually run the app:
void main() async {
...
runApp(MyApp());
}
Related
import 'package:flutter/material.dart';
import 'package:my_application_1/pages/home_page.dart';
void main() {
runApp(my_application_1());
}
class my_application_1 extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
home: home_page()
theme: ThemeData(
primarySwatch: Colors.brown
),
);
}
}
ERROR SHOWING IN THEME - Expected to find ','.dart(expected_token)
You forgot a ',' after home: homePage().
Just add it.
import 'package:flutter/material.dart';
import 'package:my_application_1/pages/home_page.dart';
void main() {
runApp(my_application_1());
}
class my_application_1 extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
home: home_page(),
theme: ThemeData(
primarySwatch: Colors.brown
),
);
}
}
I want to get user's data from server and set State, when app is loading. so I use flutter_native_splash package and provider for app. the provider doesn't work.
stock_notifier.dart
class StockCodeNotifier extends ChangeNotifier {
final List<StockModel> _stocks = [];
String _stockCode = '';
String get stockCode => _stockCode;
void getStocks() {
List<StockModel> data = allStocks;
_stocks.clear();
_stocks.addAll(data);
_stockCode = _stocks[0].code;
notifyListeners();
}
main.dart
void main() {
WidgetsBinding widgetsBinding = WidgetsFlutterBinding.ensureInitialized();
FlutterNativeSplash.preserve(widgetsBinding: widgetsBinding);
runApp(MyApp());
Provider.of<StockCodeNotifier>(context).getStocks();
FlutterNativeSplash.remove();
}
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return ChangeNotifierProvider<StockCodeNotifier>(
create: (_)=>StockCodeNotifier(),
child: MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
visualDensity: VisualDensity.adaptivePlatformDensity,
),
home: Home(),
),
);
}
}
Flutter when use riverpod in release mode application crash and when remove provider scope it is working. Widgets do not appear when the application is opened.
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:grock/grock.dart';
import 'package:turesta/constant/constant.dart';
import 'package:turesta/view/normal/splash/splash.dart';
void main() {
runApp(const ProviderScope(child: MyApp()));
}
class MyApp extends ConsumerWidget {
const MyApp({Key? key}) : super(key: key);
#override
Widget build(BuildContext context, WidgetRef ref) {
return MaterialApp(
debugShowCheckedModeBanner: false,
title: 'Turesta',
navigatorKey: Grock.navigationKey,
scaffoldMessengerKey: Grock.snackbarMessengerKey,
theme: ThemeData(
scaffoldBackgroundColor: Constant.scaffoldBgColor,
),
home: Splash(),
);
}
}
I am very new to flutter. Learning the basics. But the back button is not working as it should in the app.
This my main.dart file:
void main() async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp();
runApp(MyApp());
}
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData(
primaryColor: Colors.orange
),
debugShowCheckedModeBanner: false,
home: HomePage(),
);
}
}
I am working on Flutter webview apps using Flutter Webview.
import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';
import 'package:url_launcher/url_launcher.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: SafeArea(
child : const WebView(
initialUrl: 'https://google.com',
javascriptMode: JavascriptMode.unrestricted,
),
)
)
);
}
}
I try to use launchURL plugin but that will open predefined url in external browser window.
if (url.contains('.pdf')) {
launchURL(url);
}
What I want is to download the file in-app webview.
There is actually an existing package that you could use. Check the flutter_downloader package:
A plugin for creating and managing download tasks. Supports iOS and
Android.
This plugin is using WorkManager on Android and
NSURLSessionDownloadTask on iOS to run download tasks in background.
Here is an example that you can try:
import 'package:flutter/material.dart';
import 'package:flutter_downloader/flutter_downloader.dart';
import 'package:flutter_downloader_example/home_page.dart';
void main() async {
WidgetsFlutterBinding.ensureInitialized();
await FlutterDownloader.initialize(debug: true, ignoreSsl: true);
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
static const _title = 'flutter_downloader demo';
#override
Widget build(BuildContext context) {
final platform = Theme.of(context).platform;
return MaterialApp(
title: _title,
theme: ThemeData.light(),
darkTheme: ThemeData.dark(),
home: MyHomePage(
title: _title,
platform: platform,
),
);
}
}