Hello hope you guys are ok. the problem I'm facing is we have a main_page which leads to a page doing some changes on data which are show on the main page. after some process if the user touches back…
I was seeing that when you generate the .toMap return function in a Model, you could return the map as follows: Map<String, dynamic> toMap() { return { 'id': id, 'name': name, }; } However, in new versions I see code…
I'm trying to make the user writing his birth to calculate the age in Flutter. But IDK why it is an error. import 'dart:io'; class AgeCalculator { static int age; AgeCalculator(int p) { print('Enter your birth year: '); int birthYear…
How to not show the selected item in the dropdown? I m using DropdownButtonHideUnderline package in flutter to implement a dropdown but i don't want to show the selected item on the top.And i just need the selected item in…
I'm building a VPN application with flutter. After I click connect, the color of the button already change from blue to red. But when I click disconnect, the color of the button didn't turn back to blue. This is my…
A flutter newbie, I'm trying to get my app to take values from a local json file and render them on-screen. The logic isn't waiting for the class constructor to populate the relevant string variable before rendering the app on…
I want to add a different persons image as attached(The images inside circle avatar stacked over one another).How to achieve this. I tried the following code but didn't get the result as expected Padding( padding: EdgeInsets.only(top: 7), child: Stack( children:…
I have an flutter app that throws this error, at a specific action in the application: ======== Exception caught by widgets library ======================================================= The following _TypeError was thrown building DataFetcher<CompleteVocabularyCollection>(dirty, state: _DataFetcherState<CompleteVocabularyCollection>#da61b): type '(CompleteVocabularyCollection) => DetailsDisplay' is not a subtype…
I am stuck at trying to read the current user's data after storing it in Firestore. The page keeps showing a blank page instead of showing the actual data from Firestore. I have created a model for the data like…
The body might complete normally, causing 'null' to be returned, but the return type, 'String', is a potentially non-nullable type. Try adding either a return or a throw statement at the end. when I try to create string method: String…