I'm trying to delete a List of objects (Posts), which comes from Flutter Cubit method getPosts(), but I am absolutely not able to get these data in the second method of the cubit deletePosts(). From what I've searched on the…
We are running flutter null safety migration and completed the same but while running the app we are facing Unhandled Exception: type 'Null' is not a subtype of type 'String' static Future<AppStrings> getAppText(String local) async { var appTextBox = await…
IOWebSocketChannel? ioChannel; List<CustomRunners>? oldData = []; List<CustomRunners>? newData = []; void getSocket(){ ioChannel = IOWebSocketChannel.connect( Uri.parse( 'wss://xxx.xyz/port=${widget.port}/?logged=true&source=0'), headers: { 'Origin': 'https://abc.io', }, ); ioChannel?.stream.listen((message) { final data = jsonDecode(message); if (data[0] != null) { final match = SocketModel.fromJson(data[0]); newData!.clear(); for…
I have a map as below in Flutter/Dart. Map currencyMap = {status: Success, currency: [{id: 1, code: AFN, currency: Afghan afghani, rate: 0.25}, {id: 2, code: EUR, currency: European euro, rate: 0.25}, {id: 3, code: CFA, currency: Franc CFA, rate:…
But I'm facing this problem again and again "Unhandled Exception: MissingPluginException(No implementation found for method compressWithFileAndGetFile on channel flutter_image_compress)" Trying to compress the image by this: File? compressedFile = await FlutterNativeImage.compressImage( scannedImage!.path, quality: 20, percentage: 60); and receiving an error…
There is a function Future<void> refresh({bool value = false}) async { changeUsers(await _service.loadUsers()); if (value) return; ... } in view I can use it the way return RefreshIndicator( onRefresh: refresh, ... but if I need to pass named parameter return…
I am trying to make my Image.asset() in Flutter have a ripple effect whenever the image is tapped Below are my image assets Image.asset('images/ic_close.png') I have tried placing it inside InkWell and providing a splash color but it's also not…
I'm trying to do authentication using Riverpod StateNotifier and FutureProvider but I'm facing error when using when method facing this error The method 'when' can't be unconditionally invoked because the receiver can be 'null'. Try making the call conditional (using…
I am trying to implement indefinite scrolling with ListView.build: import 'package:flutter/material.dart'; void main() => runApp(MyApp()); class MyApp extends StatefulWidget { @override State<MyApp> createState() => _MyAppState(); } class _MyAppState extends State<MyApp> { final entries = []; void addData(num ind) async {…
I have a scenario where I have a button in the GrandChild widget that updates a variable and "sends" the updated variable to the Child.The child uses the variable it receives ,ie its used in another variable in the Child…