All Questions
1,609 questions
0
votes
2
answers
149
views
How to parse nested complex JSON data from API in Dart Flutter?
I couldn't parse the position and the 84, 86 objects inside it
{
"id": 5679,
"position": {
"84": {
"price": "...
0
votes
0
answers
349
views
Display chunked mp4 from a livestream in Flutter Web
I am developing a Flutter web application that needs to display a live stream from a HoloLens headset. The headset sends chunks of mp4 data. I have tried setting up a live stream solution but I get ...
- 23
0
votes
2
answers
133
views
setState not updating my star color because the FutureBuilder keeps rebuilding whenever I call setState
Positioned(
top: 12,
right: 12,
child: SizedBox(
...
- 429
0
votes
1
answer
51
views
can't add an image from API in flutter
I am trying to add an image from the website flagpedia
how the json is formatted
<img
src="https://flagcdn.com/120x90/za.png"
srcset="https://flagcdn.com/240x180/za.png 2x"
...
- 27
-1
votes
1
answer
89
views
MyFXBook login implementation
I am trying to connect my flutter project login page to myfxbook backend so that users can sign in from my app and it is recorded on the myfxbook database. I have designed the login page and the api ...
0
votes
1
answer
187
views
Http package refused connection on mobile network many time but on wifi works fine after updating http package
My whole team face this problem in our retailer app API works slowly on mobile network but on Wi-Fi works superb. It is not API problem http package have some kind of issue. please help to rectify ...
0
votes
2
answers
370
views
About Fetching and Updating data from Node.js rest API in Flutter
I am developing a Flutter app. Upon login I store the User ID in shared preferences. Now I want to show the User Profile in the Navigation Drawer. The User Profile consists of: student's name, class, ...
- 53
0
votes
1
answer
48
views
error: list<dynamic>' is not a subtype of type 'map<string, dynamic>'
this is my api handling section
import 'package:dio/dio.dart';
import 'package:geolocator/geolocator.dart';
import '../Utils/ConstantsPages/toast_page.dart';
class ApiManager {
Dio _dio = Dio();
...
- 2,170
0
votes
2
answers
505
views
I keep getting an error in flutter, Uncaught (in promise) Error: Expected a value of type 'String', but got one of type 'TypeErrorImpl'
This happens after fetching data from an api.
The request executes successfully and i get a json response of departments but I can't process the response. Uncaught (in promise) Error: Expected a ...
- 9
0
votes
1
answer
311
views
Why result of rest api mapping is null?
Here is my controller code, why is data returning as a null value?
Future<List<GetEntityKindsModel>> getEntityKinds() async
{
List<GetEntityKindsModel> data = [];
try
{
...
- 17
1
vote
0
answers
68
views
How to properly connect cubit and display air condition data from API in flutter
I have a problem, I'm creating an application where I want to display data from the air condition page, in this case it is "C6H6".
When I connected Cubita, the data is not displayed, even ...
- 11
0
votes
1
answer
82
views
Can't able fetch data form json using class in flutter(dart)
I am trying to retrieve the temperature data from a weather API using a generated class in Dart, created with the JSON to Dart Extension. I have been able to retrieve the entire JSON response from the ...
- 13
0
votes
1
answer
44
views
I need help resolving some errors in my project flutter that uses discord_api
The following errors are appearing:
The named parameter 'clientId' is required, but there's no corresponding argument.
The named parameter 'clientSecret' is required, but there's no corresponding ...
0
votes
1
answer
79
views
Flutter - How to how to track answers from an unknown quantity of unknown widgets?
I don't know if I'm making this way harder than it should be, but I'm not being able to see how can I track all of this. I'll explain:
I need to get a list of questions from an API request. This list ...
- 74
1
vote
1
answer
989
views
Flutter riverpod: repeat call API after x second
I am having a problem with riverpod, I need to repeat call API after 5s to get new data from the server and then update the data to the screen. Can you help me? any comments are welcome.
Here my code:...
- 23
-1
votes
1
answer
59
views
_CastError (type '_Map<String, dynamic>' is not a subtype of type 'String' in type cast) [wlifecycle]
class _HomeState extends State<Home> {
List currency = [];
Future getResponse(BuildContext context) async {
var url =
"http://api.navasan.tech/latest/?api_key=...
- 13
-1
votes
1
answer
652
views
FlutterFlow to Firebase API connection error
I'm trying to connect FlutterFlow to Firebase to make an app with ChatGpt
I saw a tutorial to connect but I have an error.
I'm trying to connect FlutterFlow to Firebase to make an app with ChatGpt
I ...
0
votes
1
answer
59
views
'List' is not a subtype of type 'Map<String, dynamic>'
import 'package:flutter/material.dart'; import 'package:flutter_localizations/flutter_localizations.dart'; import 'package:http/http.dart' as http; import 'dart:convert' as convert; import 'package:...
- 13
0
votes
1
answer
137
views
Flutter rest api mapping query
` Future<List<GetEntityKindModel>> getGroups() async {
List<GetEntityKindModel> data = [];
try {
var response = await http.get(Uri.parse(url));
...
- 17
0
votes
2
answers
102
views
How to fetch specific data from api in Flutter
I am using an API the name is coming in this API, but i want to fetch only first two words of the name if the words is greater than two then it should not be fetched. For Example the name is 'Om ...
1
vote
0
answers
64
views
how does GestureDetector work with canvas.draw circle custom paint
GestureDetector(
child: SizedBox(
width: double.infinity,
height: MediaQuery.of(context).size.height,
child: InteractiveViewer(
...
- 11
0
votes
1
answer
56
views
i am getting this error. "Exception has occurred. ArgumentError (Invalid argument(s): No host specified in URI file:///Screenshot%20(2).png"
i am getting data from backend but image is not fetched, it cause error Exception has occurred. ArgumentError (Invalid argument(s): No host specified in URI file:///Screenshot%20(2).png. the images ...
1
vote
2
answers
1k
views
Parsing and typing API response in Dart/Flutter
I am querying an API endpoint (on my Node API, which I can modify) and I expect the result to be of a certain complex type. I see no real way to share types between Node and a Flutter frontend, so I ...
- 3,018
-1
votes
1
answer
228
views
Unhandled exception: Connection timed out | Flutter | REST API
I have built a REST API using Flask framework in Python and it works completely fine when tested via Postman. But when I make requests using an android emulator, I get an exception displaying "...
- 41
0
votes
3
answers
24
views
How can I read the last change even if the program is closed and opened in the differences in the flutter program?
I am developing a project in flutter. this project works with api. I offer the option to change the api url from within the program. When the user makes changes in the program, even if the program is ...
0
votes
1
answer
28
views
Adding image to the data and data is coming from api in Flutter
i am fetching data from API but i also want to show image with the data which is coming from api. Note the image which i want to display is not in the api i want to insert manually.
1
vote
1
answer
599
views
Weather app in Flutter - Exception with data
I'm making weather forecast app with api. It has search bar on top and for now it looks like this:
It works but I'm getting this exception
and sometimes this error:
main.dart
WeatherAPI client = ...
- 43
0
votes
0
answers
1k
views
Flutter App on real Device, API doesn't work
I'm trying to run my Flutter app on my own smartphone. Everything is working fine but my smartphone can't connect to the API.
My local API is running on http://127.0.0.1:8000 (Laravel backend).
Future&...
0
votes
1
answer
2k
views
How to Call Get and Post API in Flutter?
how we can access the Get & Post Api in the Flutter app. Today, most of the apps use remote data using APIs.
An application programming interface (API) is an interface that defines interactions ...
- 11
0
votes
1
answer
148
views
I want to add watch video functionality in my flutter app
I am using TMDB (The Movie Database) Api. I am stuck in watch video functionality. How can i add watch video functionality with suitable code?
Api response
My code
class upcoming_detail extends ...
0
votes
1
answer
123
views
Flutter - Integrate an API in UI using Getx
I am trying to integrate API with UI in Flutter using GetX. But while retrieving the product from the JSON file I got the below errors.
Error:
The parameter 'id, title, description, price, discount, ...
- 95
-1
votes
1
answer
179
views
Flutter GetX - Connect API to UI
I am trying to integrate API with UI in Flutter using GetX. But while retrieving the product from the JSON file I got the below errors.
Error: The parameter 'id, title, description, price, discount, ...
- 95
0
votes
1
answer
53
views
flutter api delete 405 methot allowed
I am having a problem with the working of the api. Installing the api to iis executes "405". However, when running on localhost, it returns 200. I couldn't understand what should I do?
I am ...
1
vote
0
answers
214
views
how to post multiple data to rest api
when ever I try to post list of data at one time to rest api the api deletes the previous data and stares new one
[
{
"name": "6E72Ln9Y095x8n80Xgk6\/435291346914161.jpg"...
1
vote
0
answers
298
views
Flushbar not displaying error messages in Flutter
I was following this Flutter Course on YouTube, the person writes exact same code, but he gets to see the error message on screen (front-end) through FlushBar, but when I do the same thing, I only ...
- 103
0
votes
1
answer
487
views
ERROR:flutter/runtime/dart_vm_initializer.cc(41) Unhandled Exception: type 'Null' is not a subtype of type 'DateTime'
I have been trying to create a simple API fetching app and suddenly stoped getting fetched. Debug console shows the below error.
Codes
Debug error
First time it worked fine and now I couldn't ...
- 23
0
votes
1
answer
916
views
How to use retrofit in flutter?
I have to use retrofit to consume an api from the server. In my case I have a function that's created on java. I have to recreate it in flutter.
this is the function:
@PostMapping("/save")
...
- 89
1
vote
1
answer
23
views
How can I use Firebase in a flutter application?
I already took the APK of the application, but the part of the use of the API did not work. I investigated and I have to do a process to add firebase to my application. How can I do it step by step. I ...
- 21
1
vote
1
answer
155
views
ProGuard on Flutter using 3rd party packages
Is it necessary to use proguard on your flutter app?
I'm trying to secure my app and the only one things I know is to handle the user data using flutter_secure_storage. I want a maximum security of my ...
- 21
0
votes
1
answer
344
views
Flutter desktop App not being able to connect to localhost. Flutter/Dart
I am trying to connect to my localhost:8080 through my Flutter desktop app, but I am receiving this error
"Unhandled Exception: The remote computer refused the network connection."
this is ...
- 123
0
votes
1
answer
173
views
Flutter: type '_Map<String, dynamic>' is not a subtype of type 'List<dynamic>' in type cast
I have something like this: I make an API call and set a Specialist()
Specialist(
...
closestTimes: specialist['closestTimes'],
),
This closest time in response is like this:
"...
- 882
0
votes
1
answer
55
views
validate password and confirmpassword
can we validate password and confirmpassword by this method?
SizedBox(
height: 55,
child: MyTextField(
controller: TextEditingController(text: user.password),
validator: ...
0
votes
1
answer
76
views
Is there any way to show the unique value in Dropdownbutton list?
My code is :
Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
...
0
votes
1
answer
35
views
How to use the get() functin provided by the http package?
I'm trying to get data from a website that hosts Weather APIs (OpenWeatherMap), but as soon as I use the get() method, I get an error that says :
[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] ...
- 505
3
votes
1
answer
729
views
Flutter bangla font not supported, getting from apis, showing only symbols of bangla font
I am not able to parse bangla font , called api for getting content , where some of bangla content, but not getting bangla, showing some symbolse, how i get rid of this ? symbols like "¦®à¦¾à¦²à¦¿...
0
votes
1
answer
922
views
flutter does not show data from API
When I try to pull data from the jsonplaceholder API and put it on the screen, I don't have any problems, but when I try to change the data in this link (https://reqres.in/api/users?page=2 ) on the ...
- 51
0
votes
3
answers
47
views
Among the whole API response string I wants to get only particular word in flutter how to do it?
Below is the response where I am getting image path.the file can be pdf or jpeg or any other format. for image i am showing it in dialogue and for pdf I have to download it to the user's device.For ...
0
votes
1
answer
1k
views
How toGet data from api and save it into local database sqlite then show in listview (from local)
How to get data from api and save the data to locally database sqlite?
this is my code, but still got error in dio
can you guys help me
error dio
import 'package:bloggggg/employee_model.dart';
import '...
0
votes
1
answer
3k
views
How to reenable web security for Flutter web?
Issue
I constantly see a message when running my Flutter projects on web:
You are using unsupported command-line flag; --disable-web-security. Stability and security will suffer.
This issue started ...
- 344
-1
votes
2
answers
396
views
how to show time in date time picker in flutter..?
suppose you have a API and a key-value for this API is
"time": "22:05"
i want to show this time in a in a field and when i press the field the date time picker is pop up with time ...
- 23