Flutter app on android nougat (7.0.0) restarting the device - flutter

I had reports of users telling my app restarts the device on android 7.0.0 I tried it on the emulator and that is true. I started trying a lot of things I thought it could be a package or something.
what I finished doing is trying in a whole new project the default app that flutter creates. I tried it in the same version android 7.0.0 and there wasn't any problem.
I grabbed and pasted the main.dart from the default in my project and it keeps closing. I'll show the code just in case:
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
// This widget is the root of your application.
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
// This is the theme of your application.
//
// Try running your application with "flutter run". You'll see the
// application has a blue toolbar. Then, without quitting the app, try
// changing the primarySwatch below to Colors.green and then invoke
// "hot reload" (press "r" in the console where you ran "flutter run",
// or simply save your changes to "hot reload" in a Flutter IDE).
// Notice that the counter didn't reset back to zero; the application
// is not restarted.
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
final String title;
#override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
void _incrementCounter() {
setState(() {
// This call to setState tells the Flutter framework that something has
// changed in this State, which causes it to rerun the build method below
// so that the display can reflect the updated values. If we changed
// _counter without calling setState(), then the build method would not be
// called again, and so nothing would appear to happen.
_counter++;
});
}
#override
Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return Scaffold(
appBar: AppBar(
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
),
body: Center(
// Center is a layout widget. It takes a single child and positions it
// in the middle of the parent.
child: Column(
// Column is also a layout widget. It takes a list of children and
// arranges them vertically. By default, it sizes itself to fit its
// children horizontally, and tries to be as tall as its parent.
//
// Invoke "debug painting" (press "p" in the console, choose the
// "Toggle Debug Paint" action from the Flutter Inspector in Android
// Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
// to see the wireframe for each widget.
//
// Column has various properties to control how it sizes itself and
// how it positions its children. Here we use mainAxisAlignment to
// center the children vertically; the main axis here is the vertical
// axis because Columns are vertical (the cross axis would be
// horizontal).
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
const Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.headlineMedium,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: const Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
);
}
}
It's just the default code. This is what throws in the debug console before it restarts the device:
✓ Built build/app/outputs/flutter-apk/app-debug.apk.
D/FlutterGeolocator( 8847): Attaching Geolocator to activity
D/FlutterGeolocator( 8847): Creating service.
D/FlutterGeolocator( 8847): Binding to location service.
D/FlutterLocationService( 8847): Creating service.
D/FlutterLocationService( 8847): Binding to location service.
D/FlutterGeolocator( 8847): Geolocator foreground service connected
D/FlutterGeolocator( 8847): Initializing Geolocator services
D/FlutterGeolocator( 8847): Flutter engine connected. Connected engine count 1
Connecting to VM Service at ws://127.0.0.1:61877/QRHypptu-ro=/ws
Lost connection to device.
Exited
Here's my pubspec.yaml
# The following line prevents the package from being accidentally published to
# pub.dev using `flutter pub publish`. This is preferred for private packages.
publish_to: "none" # Remove this line if you wish to publish to pub.dev
# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
version: 2.1.2+21
environment:
sdk: ">=2.17.0 <3.7.3"
dependencies:
age_calculator: ^1.0.0
animate_do: ^3.0.2
appinio_swiper: ^1.0.3
badges: ^2.0.3
cached_network_image: ^3.2.1
carousel_images: ^1.1.2
carousel_slider: ^4.1.1
chat_bubbles: ^1.2.0
cloud_firestore: ^4.1.0
cupertino_icons: ^1.0.2
date_time_picker: ^2.1.0
dio: ^4.0.6
email_validator: ^2.0.1
equatable: ^2.0.3
extended_image: ^6.2.1
faker: ^2.0.0
firebase_auth: ^4.1.4
firebase_core: ^2.3.0
firebase_database: ^10.0.6
firebase_storage: ^11.0.6
flutter:
sdk: flutter
flutter_bloc: ^8.1.2
flutter_cache_manager: ^3.3.0
flutter_dotenv: ^5.0.2
flutter_feather_icons: ^2.0.0+1
flutter_form_builder: ^7.2.1
flutter_google_places: ^0.3.0
flutter_localizations:
sdk: flutter
flutter_markdown: ^0.6.13
flutter_native_splash: ^2.2.12
flutter_secure_storage: ^6.0.0
flutter_svg: ^1.1.3
geocoder2: ^1.4.0
geolocator: ^9.0.2
google_fonts: ^3.0.1
google_maps_flutter: ^2.2.1
google_sign_in: ^5.3.1
gradient_borders: ^0.2.0
http: ^0.13.5
image_picker: ^0.8.5+3
insta_image_viewer: ^1.0.2
intl: ^0.17.0
jiffy: ^5.0.0
jwt_decode: ^0.3.1
loading_animation_widget: ^1.2.0+2
location: ^4.4.0
lottie: ^1.4.2
marquee: ^2.2.3
permission_handler: ^10.1.0
photo_view: ^0.14.0
pinch_zoom: ^1.0.0
preload_page_view: ^0.1.6
provider: ^6.0.4
share_plus: ^4.5.2
shared_preferences: ^2.0.15
shimmer: ^2.0.0
simple_gradient_text: ^1.2.3
text_scroll: ^0.1.2
theme_provider: ^0.5.0
url_launcher: ^6.1.8
video_player: ^2.4.7
zoom_pinch_overlay: ^1.2.0
dev_dependencies:
flutter_launcher_icons: ^0.11.0
flutter_lints: ^2.0.1
flutter_test:
sdk: flutter
flutter_native_splash:
background_image: assets/img/brand/gradient.png
background_image_dark: assets/img/brand/gradientBlack.png
image: assets/img/others/splash.png
image_dark: assets/img/brand/wikenLogoBlack.png
branding: assets/img/brand/WikenBrand.png
branding_dark: assets/img/brand/WikenBrandBlack.png
android_12:
image: assets/img/brand/12logo.png
image_dark: assets/img/brand/13logo.png
color: "#EE7E58"
color_dark: "#1F1F1F"
flutter_icons:
android: true
ios: true
image_path: "assets/app_logo.png"
adaptative_icon_background: "#ffffff"
adaptative_icon_foreground: "assets/img/brand/logo_foreground.png"
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
# The following section is specific to Flutter.
flutter:
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
# To add assets to your application, add an assets section, like this:
assets:
- .env
- assets/
- assets/img/
- assets/img/alertas/
- assets/img/brand/
- assets/img/login/
- assets/img/maps/
- assets/img/others/
- assets/img/placeholder/
- assets/img/muestra/
- assets/img/uploadScreen/
- assets/img/tutorial/
- assets/svg/
- assets/ca/
fonts:
- family: Montserrat
fonts:
- asset: assets/fonts/Montserrat-Regular.ttf
- asset: assets/fonts/Montserrat-Italic-VariableFont_wght.ttf
weight: 100
- asset: assets/fonts/Montserrat-Light.ttf
weight: 300
- asset: assets/fonts/Montserrat-Medium.ttf
weight: 500
- asset: assets/fonts/Montserrat-SemiBold.ttf
weight: 600
- asset: assets/fonts/Montserrat-Bold.ttf
weight: 700
- family: Montserrat Alternates
fonts:
- asset: assets/fonts/MontserratAlternates-Regular.ttf
- asset: assets/fonts/MontserratAlternates-Bold.ttf
weight: 700
I have already run flutter clean, flutter pub get, flutter upgrade. I'm on flutter 3.7.3
I hope you can help me! Thanks in advance.

Related

Wrong colors in Toggle button widget icons

I have a toggle button widget added to the appbar in the actions section. This is how it looks:
As you see icon colors are not correct. The selected one color is the same color as the appbar and the other icons show black. Oddly, the other icon added to the appbar outside the Toggle button widget is white:
import 'package:flutter/material.dart';
void main() async {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
// This widget is the root of your application.
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Project',
home: Scaffold(
appBar: AppBar(
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text("Game Manager"),
actions: [
Row(children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: ToggleButtons(
borderRadius: const BorderRadius.all(Radius.circular(8)),
/*borderColor: Colors.blue,
selectedBorderColor: Colors.blue[200],
selectedColor: Colors.white,
fillColor: Colors.blue[300],
color: Colors.blue[300],*/
onPressed: (int i) => print("pressed!"),
isSelected: const [true,false,false],
children: [
Tooltip(message: "sort_by_name", child: const Icon(Icons.receipt)),
Tooltip(message: "sort_by_status", child: const Icon(Icons.stars)),
Tooltip(message: "sort_by_size", child: const Icon(Icons.storage))
]),
),
IconButton(
onPressed: () {
print("Yeah");
},
icon: const Icon(Icons.unfold_less),
tooltip: "fold_all",
),
IconButton(
onPressed: null,
icon: Icon(Icons.refresh),
tooltip: "refresh",
),
]
)
]),
body: Container()
),
);
}
}
PubSpec.yaml:
name: project
description: A new Flutter project.
# The following line prevents the package from being accidentally published to
# pub.dev using `flutter pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number is used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
# In Windows, build-name is used as the major, minor, and patch parts
# of the product and file versions while build-number is used as the build suffix.
version: 1.0.0+1
environment:
sdk: '>=2.18.4 <3.0.0'
# Dependencies specify other packages that your package needs in order to work.
# To automatically upgrade your package dependencies to the latest versions
# consider running `flutter pub upgrade --major-versions`. Alternatively,
# dependencies can be manually updated by changing the version numbers below to
# the latest version available on pub.dev. To see which dependencies have newer
# versions available, run `flutter pub outdated`.
dependencies:
flutter:
sdk: flutter
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.2
dev_dependencies:
flutter_test:
sdk: flutter
# The "flutter_lints" package below contains a set of recommended lints to
# encourage good coding practices. The lint set provided by the package is
# activated in the `analysis_options.yaml` file located at the root of your
# package. See that file for information about deactivating specific lint
# rules and activating additional ones.
flutter_lints: ^2.0.0
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
# The following section is specific to Flutter packages.
flutter:
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
# To add assets to your application, add an assets section, like this:
assets:
- assets/images/logo.png
- assets/translations/

Error running sample Flutter Provider program

I am trying to run sample Riverpod program from Getting started Riverpod page
Pubspec is specified as given on the page.
Debug Console dumps the following message:
Launching lib/main.dart on Chrome in debug mode...
lib/main.dart:1
: Error: Method not found: 'Error.throwWithStackTrace'.
../…/framework/provider_base.dart:985
Error.throwWithStackTrace(error, chain);
^^^^^^^^^^^^^^^^^^^
: Error: A non-null value must be returned since the return type 'Never' doesn't
allow null.
../…/framework/provider_base.dart:979
Never _rethrowProviderError(Object error, StackTrace stackTrace) {
^
Failed to compile application.
Exited (sigterm)
Just to be sure, following is main.dart:
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
// We create a "provider", which will store a value (here "Hello world").
// By using a provider, this allows us to mock/override the value exposed.
final helloWorldProvider = Provider((_) => 'Hello world');
void main() {
runApp(
// For widgets to be able to read providers, we need to wrap the entire
// application in a "ProviderScope" widget.
// This is where the state of our providers will be stored.
const ProviderScope(
child: MyApp(),
),
);
}
// Extend ConsumerWidget instead of StatelessWidget, which is exposed by Riverpod
class MyApp extends ConsumerWidget {
const MyApp({Key? key}) : super(key: key);
#override
Widget build(BuildContext context, WidgetRef ref) {
final String value = ref.watch(helloWorldProvider);
return MaterialApp(
home: Scaffold(
appBar: AppBar(title: const Text('Example')),
body: Center(
child: Text(value),
),
),
);
}
}
And pubspec is as follows:
name: simple_app
description: A new Flutter project.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
version: 1.0.0+1
environment:
sdk: ">=2.12.0 <3.0.0"
flutter: ">=2.0.0"
dependencies:
flutter:
sdk: flutter
flutter_riverpod: ^2.0.0-dev.4
cupertino_icons: ^1.0.2
dev_dependencies:
flutter_test:
sdk: flutter
flutter_lints: ^1.0.0
flutter:
uses-material-design: true
Environment:
Flutter (Channel stable, 2.5.3, on macOS 12.2.1 21D62 darwin-x64, locale en-US)

Flutter build not running with geocoding and location package

I tried to run a simple project but i gives me errors:
Launching lib\main.dart on ASUS Z01QD in debug mode...
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:processDebugResources'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
> Failed to transform play-services-base-16.0.1.aar (com.google.android.gms:play-services-base:16.0.1) to match attributes {artifactType=android-compiled-dependencies-resources, org.gradle.status=release}.
> Execution failed for AarResourcesCompilerTransform: C:\Users\win\.gradle\caches\transforms-2\files-2.1\f260781842f212c36494d469961b4620\jetified-play-services-base-16.0.1.
> AAPT2 aapt2-4.1.0-6503028-windows Daemon #0: Unexpected error during compile 'C:\Users\win\.gradle\caches\transforms-2\files-2.1\f260781842f212c36494d469961b4620\jetified-play-services-base-16.0.1\res\drawable-xhdpi-v4\common_google_signin_btn_text_dark_normal_background.9.png', attempting to stop daemon.
This should not happen under normal circumstances, please file an issue if it does.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 1m 58s
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)
main.dart ->
import 'package:flutter/material.dart';
import 'package:locationflutter/splashscreen.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: 'Flutter Demo',
theme: ThemeData(
// This is the theme of your application.
//
// Try running your application with "flutter run". You'll see the
// application has a blue toolbar. Then, without quitting the app, try
// changing the primarySwatch below to Colors.green and then invoke
// "hot reload" (press "r" in the console where you ran "flutter run",
// or simply save your changes to "hot reload" in a Flutter IDE).
// Notice that the counter didn't reset back to zero; the application
// is not restarted.
primarySwatch: Colors.blue,
),
home: SplashScreen(),
);
}
}
splashscreen.dart
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:location/location.dart';
import 'package:locationflutter/location_service.dart';
import 'package:locationflutter/mainscreen.dart';
class SplashScreen extends StatefulWidget {
const SplashScreen({Key? key}) : super(key: key);
#override
_SplashScreenState createState() => _SplashScreenState();
}
class _SplashScreenState extends State<SplashScreen> {
#override
void initState() {
super.initState();
locationService();
}
Future<void> locationService() async {
Location location = new Location();
bool _serviceEnabled;
PermissionStatus _permissionLocation;
LocationData _locData;
_serviceEnabled = await location.serviceEnabled();
if(!_serviceEnabled) {
_serviceEnabled = await location.requestService();
if (!_serviceEnabled) {
return;
}
}
_permissionLocation = await location.hasPermission();
if(_permissionLocation == PermissionStatus.denied) {
_permissionLocation = await location.requestPermission();
if(_permissionLocation != PermissionStatus.granted) {
return;
}
}
_locData = await location.getLocation();
setState(() {
UserLocation.lat = _locData.latitude!;
UserLocation.long = _locData.longitude!;
});
Timer(Duration(milliseconds: 500), () {
Navigator.pushReplacement(context,
MaterialPageRoute(builder: (context) => MainScreen()));
});
}
#override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: Text("WELCOME"),
),
);
}
}
mainscreen.dart
import 'package:flutter/material.dart';
import 'package:geocoding/geocoding.dart';
import 'package:locationflutter/location_service.dart';
class MainScreen extends StatefulWidget {
const MainScreen({Key? key}) : super(key: key);
#override
_MainScreenState createState() => _MainScreenState();
}
class _MainScreenState extends State<MainScreen> {
String country = '';
String name = '';
String street = '';
String postalCode = '';
#override
void initState() {
super.initState();
getLocation();
}
Future<void> getLocation() async {
List<Placemark> placemark = await placemarkFromCoordinates(UserLocation.lat, UserLocation.long);
print(placemark[0].country);
print(placemark[0].name);
print(placemark[0].street);
print(placemark[0].postalCode);
setState(() {
country = placemark[0].country!;
name = placemark[0].name!;
street = placemark[0].street!;
postalCode = placemark[0].postalCode!;
});
}
#override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text("Lat : " + "${UserLocation.lat}"),
Text("Long : " + "${UserLocation.long}"),
Text("Country : " + "$country"),
Text("Name : " + "$name"),
Text("Street : " + "$street"),
Text("PostalCode : " + "$postalCode"),
],
),
),
);
}
}
location_service.dart
class UserLocation {
static double lat = 0;
static double long = 0;
}
pubspec.yaml
name: locationflutter
description: A new Flutter project.
# The following line prevents the package from being accidentally published to
# pub.dev using `pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
version: 1.0.0+1
environment:
sdk: ">=2.12.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
location: ^4.3.0
geocoding: ^2.0.1
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.2
dev_dependencies:
flutter_test:
sdk: flutter
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
# The following section is specific to Flutter.
flutter:
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
# To add assets to your application, add an assets section, like this:
# assets:
# - images/a_dot_burr.jpeg
# - images/a_dot_ham.jpeg
# An image asset can refer to one or more resolution-specific "variants", see
# https://flutter.dev/assets-and-images/#resolution-aware.
# For details regarding adding assets from package dependencies, see
# https://flutter.dev/assets-and-images/#from-packages
# To add custom fonts to your application, add a fonts section here,
# in this "flutter" section. Each entry in this list should have a
# "family" key with the font family name, and a "fonts" key with a
# list giving the asset and other descriptors for the font. For
# example:
# fonts:
# - family: Schyler
# fonts:
# - asset: fonts/Schyler-Regular.ttf
# - asset: fonts/Schyler-Italic.ttf
# style: italic
# - family: Trajan Pro
# fonts:
# - asset: fonts/TrajanPro.ttf
# - asset: fonts/TrajanPro_Bold.ttf
# weight: 700
#
# For details regarding fonts from package dependencies,
# see https://flutter.dev/custom-fonts/#from-packages
flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 2.8.1, on Microsoft Windows [Version 10.0.19043.1415], locale
en-US)
[√] Android toolchain - develop for Android devices (Android SDK version 32.0.0)
[√] Chrome - develop for the web
[√] Visual Studio - develop for Windows (Visual Studio Community 2022 17.0.4)
[√] Android Studio (version 2020.3)
[√] VS Code (version 1.63.2)
[√] Connected device (4 available)
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• No issues found!
I don't know what am I doing wrong.
I Fixed this issue by:
In gradle-wrapper.properties I defined Gradle version 6.1.1
by adding at the last of the file
distributionUrl=https://services.gradle.org/distributions/gradle-6.1.1-all.zip
And in the project-level build.gradle I set version 4.0.2
by adding
classpath 'com.android.tools.build:gradle:4.0.2'
reference: solution

issue with video_player and channel getting null

i got a issue that i try understand how i can fix this
i get this error message about the Unhandled Exception: PlatformException(channel-error, Unable to establish connection on channel., null, null)
i have try look into but i have no idea why or how it hapending the full message within the post
i try understand what the origin this happened i try clean the build folder via flutter clean this happend
i try run build runner it may missing something nope i got no idea what seem to be the issue here
[GETX] REPLACE ROUTE /splash
[GETX] NEW ROUTE /login
I/flutter (17459): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter (17459): │ #0 LoggerService.info
package:demo_ecom/…/utils/logger_service.dart:19
I/flutter (17459): │ #1 _LoginScreenState.initState
package:demo_ecom/…/login/login_screen.dart:32
I/flutter (17459): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter (17459): │ 💡 Load Login Screen
I/flutter (17459): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
E/flutter (17459): [ERROR:flutter/lib/ui/ui_dart_state.cc(186)] Unhandled Exception: PlatformException(channel-error, Unable to establish connection on channel., null, null)
E/flutter (17459): #0 VideoPlayerApi.initialize
package:video_player_platform_interface/messages.dart:156
E/flutter (17459): <asynchronous suspension>
E/flutter (17459):
E/flutter (17459): [ERROR:flutter/lib/ui/ui_dart_state.cc(186)] Unhandled Exception: PlatformException(channel-error, Unable to establish connection on channel., null, null)
E/flutter (17459): #0 VideoPlayerApi.create
package:video_player_platform_interface/messages.dart:181
E/flutter (17459): <asynchronous suspension>
E/flutter (17459): #1 MethodChannelVideoPlayer.create
package:video_player_platform_interface/method_channel_video_player.dart:47
E/flutter (17459): <asynchronous suspension>
E/flutter (17459): #2 VideoPlayerController.initialize
package:video_player/video_player.dart:308
E/flutter (17459): <asynchronous suspension>
E/flutter (17459):
Lost connection to device.
the file that play this vid as follow
import 'dart:async';
import 'package:demo_ecom/common/utils/logger_service.dart';
import 'package:demo_ecom/widgets/login/login_buttons.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:video_player/video_player.dart';
import 'package:demo_ecom/generated/l10n.dart';
import 'login_form.dart';
class LoginScreen extends StatefulWidget {
const LoginScreen({Key key}) : super(key: key);
#override
_LoginScreenState createState() => _LoginScreenState();
}
class _LoginScreenState extends State<LoginScreen> {
final _formKey = GlobalKey<FormState>();
VideoPlayerController _controller;
bool _visible = false;
#override
void initState() {
super.initState();
SystemChrome.setPreferredOrientations([
DeviceOrientation.portraitUp,
DeviceOrientation.portraitDown,
]);
LoggerService().info('Load Login Screen');
_controller = VideoPlayerController.asset('assets/media/login-vid.mp4');
_controller.initialize().then((_) {
_controller.setLooping(true);
Timer(const Duration(milliseconds: 100), () {
setState(() {
_controller.play();
_visible = true;
});
});
});
}
#override
void dispose() {
super.dispose();
if (_controller != null) {
_controller.dispose();
_controller = null;
}
}
Widget _getVideoBackground() {
return AnimatedOpacity(
opacity: _visible ? 1.0 : 0.0,
duration: const Duration(milliseconds: 1000),
child: VideoPlayer(_controller),
);
}
Widget _getBackgroundColor() {
return Container(
color: Colors.black.withAlpha(120),
);
}
Widget _getContent(BuildContext context) {
final splogen_1 = S.of(context).login_slogen;
final splogen_2 = S.of(context).login_slogen2;
return Form(
key: _formKey,
child: ListView(
shrinkWrap: true,
padding: EdgeInsets.all(15.0),
children: <Widget>[
const SizedBox(
height: 40.0,
),
const Image(
image: AssetImage('assets/media/logo.jpg'),
width: 150.0,
),
Text(
splogen_1,
style: TextStyle(color: Colors.white, fontSize: 40),
textAlign: TextAlign.center,
),
Container(
margin: const EdgeInsets.only(left: 30.0, right: 30.0, top: 40.0),
alignment: Alignment.center,
child: Text(
splogen_2,
textAlign: TextAlign.center,
style: TextStyle(color: Colors.white, fontSize: 20),
),
),
LoginForm(),
LoginButtons()
],
),
);
}
#override
Widget build(BuildContext context) {
return SafeArea(
child: Scaffold(
body: Center(
child: Stack(
children: <Widget>[
_getVideoBackground(),
_getBackgroundColor(),
_getContent(context),
],
),
),
),
);
}
}
the pubspec as follow
name: demo_ecom
description: Demo Ecom App
# The following line prevents the package from being accidentally published to
# pub.dev using `pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
version: 1.0.0+2
environment:
sdk: ">=2.7.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
flutter_localizations:
sdk: flutter
# Service locator
provider: ^5.0.0
# Connectivity
data_connection_checker: ^0.3.4
# Logging
logger: ^1.0.0
# Json
json_annotation: ^4.0.1
# firebase
firebase_core: ^0.7.0
firebase_remote_config: "^0.6.0"
firebase_auth: "^0.20.1"
firebase_crashlytics: ^0.4.0+1
#auth social
google_sign_in: "^4.5.1"
flutter_facebook_auth: "^1.0.0"
# localization
intl: ^0.17.0
# ui tools
flutter_password_strength: ^0.1.6
flutter_signin_button: ^1.1.0
animations: ^2.0.0
pull_to_refresh: ^1.6.4
get: ^3.26.0
flutter_easyloading: ^3.0.0
responsive_framework: ^0.1.0
animated_text_kit: ^4.1.0
flutter_spinkit: "^5.0.0"
convex_bottom_bar: ^3.0.0
introduction_screen: ^2.0.0
flash: ^1.5.1
material_floating_search_bar: ^0.3.3
video_player: ^2.0.0
chewie: ^1.0.0
# ui icons
cupertino_icons: ^1.0.2
font_awesome_flutter: ^9.0.0
flutter_icons: ^1.1.0
# misc tools
validators: ^2.0.1
dio: ^3.0.10
pretty_dio_logger: ^1.1.1
jiffy: ^4.0.0
equatable: ^2.0.0
meta: ^1.3.0
stack_trace: ^1.10.0
shared_preferences: ^2.0.5
async: ^2.5.0
# override requirement that conflict will rise if removed
dependency_overrides:
analyzer: ^1.3.0
yaml: ^3.1.0
intl: ^0.17.0
dart_style: ^2.0.0
args: ^2.0.0
glob: ^2.0.0
source_gen: ^1.0.0
logging: ^1.0.1
convert: ^3.0.0
crypto: ^3.0.0
vin_decoder: ^0.1.3
json_annotation: ^4.0.1
font_awesome_flutter: ^9.0.0
dev_dependencies:
# add build runner if not already added
build_runner: ^1.12.2
flutter_test:
sdk: flutter
# Linting
lint: ^1.5.3
# Json
json_serializable: ^4.1.0
# misc tools
mockito: ^5.0.2
flutter_launcher_icons: ^0.9.0
environment_config: ^2.2.5
flutter_rename_app: ^1.0.0
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
# The following section is specific to Flutter.
flutter:
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
assets:
- assets/fonts/
- assets/media/
- assets/icons/
# An image asset can refer to one or more resolution-specific "variants", see
# https://flutter.dev/assets-and-images/#resolution-aware.
# For details regarding adding assets from package dependencies, see
# https://flutter.dev/assets-and-images/#from-packages
# To add custom fonts to your application, add a fonts section here,
# in this "flutter" section. Each entry in this list should have a
# "family" key with the font family name, and a "fonts" key with a
# list giving the asset and other descriptors for the font. For
# example:
# fonts:
# - family: Schyler
# fonts:
# - asset: fonts/Schyler-Regular.ttf
# - asset: fonts/Schyler-Italic.ttf
# style: italic
# - family: Trajan Pro
# fonts:
# - asset: fonts/TrajanPro.ttf
# - asset: fonts/TrajanPro_Bold.ttf
# weight: 700
#
# For details regarding fonts from package dependencies,
# see https://flutter.dev/custom-fonts/#from-package
# To hide the notification bar, use the fullscreen parameter. Has no affect in web since web
# has no notification bar. Defaults to false.
# NOTE: Unlike Android, iOS will not automatically show the notification bar when the app loads.
# To show the notification bar, add the following code to your Flutter app:
# WidgetsFlutterBinding.ensureInitialized();
# SystemChrome.setEnabledSystemUIOverlays([SystemUiOverlay.bottom, SystemUiOverlay.top]);
#fullscreen: true
# If you have changed the name(s) of your info.plist file(s), you can specify the filename(s)
# with the info_plist_files parameter. Remove only the # characters in the three lines below,
# do not remove any spaces:
#info_plist_files:
# - 'ios/Runner/Info-Debug.plist'
# - 'ios/Runner/Info-Release.plist'
flutter_intl:
enabled: true
localizely:
project_id: c4305176-c927-4336-80bd-7bbc91f25b3d
flutter_icons:
image_path: 'assets/assets/icons/app_icon.png'
android: true
ios: true
flutter_rename_app:
application_name: Demo Ecom
dart_package_name: demo_ecom
application_id: com.wolberg.pro.demo
bundle_id: com.wolberg.pro.demo
android_package_name: com.wolberg.pro.demo
targets:
$default:
builders:
injectable_generator:injectable_builder:
options:
auto_register: true
# auto registers any class with a name matches the given pattern
class_name_pattern:
"Service$|Repository$"
# auto registers any class inside a file with a
# name matches the given pattern
file_name_pattern: "_service$|_repository$"
#flutter pub run flutter_rename_app
i got no idea what i can do not sure what i did here wrong thanks for the helpers

I have a generated a QR code but the source code does not scan the generated QR code

I have a generated a QR code but the source code does not scan the generated QR code.
I have a QR code scanner template but it does not scan the generated QR code.
It can only Generate a QR code but it does not scan the Code.
The onPressed method is supposed to be scanning the generated code.
I get this error when I click the floating Button
Unhandled Exception: MissingPluginException(No implementation found for method scanBarcode on channel flutter_barcode_scanner)
import 'package:flutter/material.dart';
//import 'package:qr_flutter/qr_flutter.dart';
//import 'package:flutter_barcode_scanner/flutter_barcode_scanner.dart';
//import 'package:qr_code';;
import 'package:qrscan/qrscan.dart' as scanner;
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
// TODO: implement build
return MaterialApp(
title: "flutter Demo",
theme: ThemeData(
primaryColor: Colors.blue,
),
home: MyHomePage(title: "Flutter QR"),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
#override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
String barcode = "";
Future scanBarcode() async {
String barcodeResult = await scanner.scan();
setState(() {
barcode = barcodeResult;
});
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
children: <Widget>[
/*QrImage(
data: "Savanna, R25",
backgroundColor: Colors.white,
size: 200,
)*/
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: () => scanBarcode(),
tooltip: "increment",
child: Icon(Icons.add),
),
);
}
}
My Pubspec.yaml file with plugins
name: fluttersqflite
description: A new Flutter application.
# The following line prevents the package from being accidentally published to
# pub.dev using `pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
version: 1.0.0+1
environment:
sdk: ">=2.7.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.0
qr_flutter: ^3.0.1
flutter_barcode_scanner: ^0.1.7
dev_dependencies:
flutter_test:
sdk: flutter
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
# The following section is specific to Flutter.
flutter:
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
# To add assets to your application, add an assets section, like this:
# assets:
# - images/a_dot_burr.jpeg
# - images/a_dot_ham.jpeg
# An image asset can refer to one or more resolution-specific "variants", see
# https://flutter.dev/assets-and-images/#resolution-aware.
# For details regarding adding assets from package dependencies, see
# https://flutter.dev/assets-and-images/#from-packages
# To add custom fonts to your application, add a fonts section here,
# in this "flutter" section. Each entry in this list should have a
# "family" key with the font family name, and a "fonts" key with a
# list giving the asset and other descriptors for the font. For
# example:
# fonts:
# - family: Schyler
# fonts:
# - asset: fonts/Schyler-Regular.ttf
# - asset: fonts/Schyler-Italic.ttf
# style: italic
# - family: Trajan Pro
# fonts:
# - asset: fonts/TrajanPro.ttf
# - asset: fonts/TrajanPro_Bold.ttf
# weight: 700
#
# For details regarding fonts from package dependencies,
# see https://flutter.dev/custom-fonts/#from-packages
Give a try to this plugin- qrscan
and in your dart file write this:-
import 'package:qrscan/qrscan.dart' as scanner;
Function for scan:-
Future _scan() async {
String barcode = await scanner.scan();
setState(() {
barcode = barcodeResult;
});
}
And in your floating action button:-
floatingActionButton: FloatingActionButton(
onPressed: ()=>_scan(),
tooltip: "increment",
child: Icon(Icons.add),
),
And ya remember to add permission for this dependency