I have generated a QrCode from flutter using "qr_flutter: 4.0.0" and I am scanning it from a different app using "mobile_scanner: ^3.0.0". What I want here is that after I scan the QR I don't it to be scanable again.…
How can I add a shadow to the border of modal bottom sheet? Here's my code: import 'package:flutter/material.dart'; void main() => runApp(MyApp()); class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( title: 'Flutter Demo', theme: ThemeData( useMaterial3:…
Failed to build iOS app Error (Xcode): ../../../Developer/flutter/packages/flutter/lib/src/material/data_table.dart:1164:41: Error: Member not found: 'Matrix4.identity'. Could not build the application for the simulator. Error launching application on iPhone 14 Pro Max. When i type flutter run the above error occurs on the…
I am using GetX. When I go from EventScreen to HomeScreen -> Everything works...then going back to EventScreen and back to HomeScreen(using Drawer menu from left)...the second time I go back to the HomeScreen this error occurs: [GETX] Instance "EventsScreenController"…
I have this project which works fine when I had not added chatview: ^1.2.0+1. Now after adding it as a dependency, I get an error of Because chatview >=1.0.0 depends on intl ^0.18.0 and mobile_app depends on intl ^0.17.0, chatview…
I want to implement dark/light mode from settings page where a toggle switch is used, everything works good except when I select light mode and restart the app then the app reverts backs to dark mode. What am I doing…
I made a form to add an image and its information in a ListView.builder(), this is the image screenshot and code: class _AddNewProductState extends State<AddNewProduct> { String? dropdownValue = 'Fruits'; String? productName; int? productPrice; Future<void> openMobileImagePicker() async { final XFile?…
Let’s say I have: List<Thing> myList = … And Thing is a class that includes: String a; List<String> b; … Is it possible to map myList in a way that generates a List<String> that includes all a and all b?…
I resently came across this error while building my flutter app. ======== Exception caught by widgets library ======================================================= The following _CastError was thrown building StreamBuilder<QuerySnapshot<Object?>>(dirty, state: _StreamBuilderBaseState<QuerySnapshot<Object?>, AsyncSnapshot<QuerySnapshot<Object?>>>#97a1b): Null check operator used on a null value The relevant error-causing widget…
I would like to check the 'shared_preferences' package in dart and if the user succeeds in logging in after checking the remember check box, save the email that the user used to log in and fill in the email box…