I have a flutter app in which I normally use http request post from a model to a go API like this. if (dateRequired != null) { data['date_required'] = dateRequired?.formatDbDate(); } else { data['date_required'] = null; } However, I want…
I need a Lottie to be fitted to the whole screen, so I set Lottie height and width to double.infinity. But the Lottie getting expanded from top left corner instead of from centre making the centre of lottie slightly moved…
I am trying to create a post system with geo location filter. I want to fetch all the results in the given radius and then paginate it to reduce the reads and to be developer-cost efficient. In the codes below,…
I was learning Flutter, and I am trying to create a simple app. This is my code so far; import 'package:flutter/material.dart'; void main() => runApp(const CurrencyConverter()); class CurrencyConverter extends StatefulWidget { const CurrencyConverter({Key? key}) : super(key: key); @override _CurrencyConverterState createState()…
First off let's define some criteria for this extension: It should return true if the object is null or an empty string. I should be able to use it on a chained nullable object. I should not have to use…
I want to show 2 diiferent dialog box at some interval but it gives me error. First I want to show circular loading dialog and after some interval I want to show the another one. But I didn't know where…
I want to add a null value to a stream, but it will show an error. When I do: final StreamController<Car?> streamController = StreamController<Car?>.broadcast(); streamController.add(null) I'll get flutter: ┌─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── flutter: │ #0 _BroadcastStreamController.add (dart:async/broadcast_stream_controller.dart:242:14) flutter: │ #1 CarService.selectCar (package:app/services/car_service.dart:109:39) flutter:…
I'm currently taking an Udemy (https://www.udemy.com/course/learn-flutter-dart-to-build-ios-android-apps/) course on Flutter and while on it, I've been able to do most of the setups. My (Default) demo code could compile and display web apps https://ibb.co/GRzPdQx but couldn't display on my physical device…
I'm getting the issue when converting string to TimeOfday. It was working before but now I am getting the issue. try { final format = DateFormat.jm(); //"6:00 AM" TimeOfDay day = TimeOfDay.fromDateTime(format.parse("6:00")); } catch(ex) { PLPrint(name: "CheckTest",value: "${ex.toString()}"); } I…
i tried to make a checkbox for a week in flutter . and because of not writing extra code i made a widget "week" and when i run the code i can see the checkboxes but when i click on…