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
),
);
}
}
Related
"YouController" not found. You need to call "Get.put(YouController())" or
"Get.lazyPut(()=>YouController())"
Getting this error even after I have Get.put() before coming to the screen.
Any Idea?
You can try this:
create a file named initial_bindings.dart in your lib folder. Then add this snippet to it.
import 'package:get/get.dart';
class InitialBinding implements Bindings {
#override
void dependencies() {
Get.lazyPut<YouController>(() => YouController(),fenix: true);
}
}
Then in your main.dart, add this line into your GetMaterialApp.
class MyApp extends StatelessWidget {
const MyApp({super.key});
#override
Widget build(BuildContext context) {
return GetMaterialApp(
initialBinding: InitialBinding(), // add this line
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: HomePage(),
);
}
}
Then whenever you want to access the controller, you can just use Get.find<YourController>() to use it.
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());
}
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(),
),
);
}
}
I´m newbie to flutter and reveice one exception about route, I don't why I am getting this error in the debug console 'could not find a generator for route RouteSettings("org_Item", null) in the _WidgetsAppState.'
provinces_item.dart
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:let_us_volunteer/screens/orgscreen.dart';
class provwidget extends StatelessWidget {
final String id;
final String title;
final String image;
provwidget(this.id, this.title, this.image);
void selectOrg(BuildContext ctx) {
Navigator.of(ctx).pushNamed(orgscreen.routeName);
}
#override
Widget build(BuildContext context) {
return InkWell(
onTap: () => selectOrg(context),
child: Image.asset(image),
);
}
}
main.dart
import 'package:flutter/material.dart';
import 'package:let_us_volunteer/screens/log_in.dart';
import 'screens/page_view.dart';
import 'screens/log_in.dart';
import 'screens/orgscreen.dart';
void main() async {
runApp(page_view());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
// This widget is the root of your application.
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'flutter demo',
theme: ThemeData(
primarySwatch: Colors.purple,
primaryColor: Colors.purple,
),
home: const log_in_screen(),
routes: {
'/': (context) => log_in_screen(),
orgscreen.routeName: (context) => orgscreen(),
},
);
}
}
orgscreen.dart
import 'package:flutter/material.dart';
class orgscreen extends StatefulWidget {
static const routeName = 'org_Item';
#override
State<orgscreen> createState() => _orgscreenState();
}
class _orgscreenState extends State<orgscreen> {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text('ggg')),
body: null,
);
}
}
If someone knows the solution it would be grateful for help, and explaining what was wrong, thanks
Try to remove your home: const log_in_screen(), and for format case use '/org_Item';
title: 'flutter demo',
theme: ThemeData(
primarySwatch: Colors.purple,
primaryColor: Colors.purple,
),
routes: {
'/': (context) => log_in_screen(),
orgscreen.routeName: (context) => orgscreen(),
},
And not sure about your page_view, you can check
runApp(MyApp());
The correct way of define route is use / with it, So change your route to this:
static const routeName = '/org_Item';
when yo do not run your main class (MyApp) in your runApp, it can not define that route, so also correct this:
runApp(MyApp());
last thing when you define / this in your routes, you should not use home property of MaterialApp, so remove home: const log_in_screen(), and your final MaterialApp should look like this:
MaterialApp(
title: 'flutter demo',
theme: ThemeData(
primarySwatch: Colors.purple,
primaryColor: Colors.purple,
),
routes: {
'/': (context) => log_in_screen(),
orgscreen.routeName: (context) => orgscreen(),
},
)
I need to change the flutter theme color, but when I tried then run my app it's show nothing to change. I don't know why.
I have tried this way:
import 'package:flutter/material.dart';
import 'pages/home_page.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
home: HomePage(),
themeMode: ThemeMode.dark,
theme: ThemeData(primarySwatch: Colors.deepPurple),
darkTheme: ThemeData(
brightness: Brightness.dark, primarySwatch: Colors.deepPurple),
);
}
}
when I change like this way, then still show me default blue color.
flutter version: 2.2.1
Any suggestion please.
with this code:
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
// This widget is the root of your application.
#override
Widget build(BuildContext context) {
return MaterialApp(
title: "Title",
theme: ThemeData(primarySwatch: Colors.deepPurple),
darkTheme: ThemeData(
brightness: Brightness.dark, primarySwatch: Colors.deepPurple),
home: Test(),
);
}
}
class Test extends StatelessWidget {
const Test({Key key}) : super(key: key);
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("SomeText"),
),
body: Center(child: Text("Center Text",)),
);
}
}
I get This result. (Flutter 1.22.5)