Before every video I am getting a black screen which I am not sure why is it appearing. At first I thought it is due to the internet connection or something but that does not seem to be affecting it at all. I am getting video urls from the...

Dart

Flutter

Automatic update app

5 Jun 2023 by Luis M. Rojas

Hello everybody, I have a flutter app. We published the app on google play Is there is a way that user recive a msg when a new version is it ready on google play? Of course, the user ( i suppose) first has to open the app on the movil What I...

Automatic update app

5 Jun 2023 by Dave Kreskowiak

The best source of information on this would be a forum dedicated to the Google Play API. Google Play Developer Community[^]

Automatic update app

5 Jun 2023 by Andre Oosthuizen

The easiest way is to make use of the version component to manage any updates - 1. Version your Android App steps[^] 2. How to inform the users of an Android app that a new version is available in the Google Play Store through Notification[^] 3....

Can't navigate to the specific page with notfification tap. Flutter deeplinking issue

21 Apr 2022 by Ashish Koirala 2022

//root dart file FirebaseMessaging.onBackgroundMessage(_backgroundMessageHandler); await NotificationService.instance.initializeNotifications(); Future _backgroundMessageHandler(RemoteMessage message) async { await...

Flutter

DART2 Prima Plus - Tutorial 4 - OOPS

31 Jul 2018 by ThatsAlok

Object Oriented Programming in DART

Error: can't access 'this' in a field initializer. Vsync: this, in flutter

6 May 2021 by anandmayee maity

I am new to Flutter and trying out new stuffs. Trying ANIMATEDBUILDER Class I came across one main.dart:34:12: Error: Can't access 'this' in a field initializer. vsync: this, And I am not able to understand what the issue is here. Anyone...

Android

Flutter

Error: task index 1 failed: retries exhausted after 4 attempts, with error: HTTP error: 400, precondition check failed.

16 Nov 2023 by Vardaan Grover

I am facing issues deploying my Flutter web app to Firebase Hosting. The deployment process was working fine, but now I'm encountering a persistent HTTP 400 error with the message "Precondition check failed" during deployment. The deployment...

web-hosting

Flutter

deployment

Failure [INSTALL_FAILED_CONTAINER_ERROR: failed to extract native libraries, res=-18] error launching application on SDK gphone64 arm64

21 Jan 2024 by Richard MacCutchan

Se https://stackoverflow.com/questions/77663954/flutter-failed-to-extract-native-libraries-res-18[^]

Dart

Flutter

Failure [INSTALL_FAILED_CONTAINER_ERROR: failed to extract native libraries, res=-18] error launching application on SDK gphone64 arm64

20 Jan 2024 by Kavya Bhargava

I am receiving this error: Error: ADB exited with exit code 1 Performing Streamed Install adb: failed to install /Users/XXX/FlutterDev/XXX_app/build/app/outputs/flutter-apk/app-debug.apk: Failure [INSTALL_FAILED_CONTAINER_ERROR: Failed to...

Dart

Flutter

Firebase messaging not working [not receiving notfications] but app connected to firebase

4 Mar 2022 by Kavya Bhargava

I was following a tutorial for Firebase push notifications. I followed all the steps: Connecting app to Firebase, and importing packages (Firebase messaging and Firebase push notifications). I tried sending several notifications, but it did not...

Dart

cloud

Flutter

Firebase realtime database onvalue event don't work

14 Apr 2024 by gacar

I have firebase realtime database. When I manually change data on the Firebase console, vscode stops responding and throws the following error. Error: TypeError: Instance of '_Exception': type '_Exception' is not a subtype of type...

Dart

Flutter

Flutter : onpressed for imagepicker function not working

29 Jan 2022 by Kavya Bhargava

I built an image picker after learning in a course. I am not getting any errors in the debug console or in the build. I am trying to click it but it is not working. I made another image picker in a similar manner in same app but that did not gave...

Dart

Flutter

Flutter : the earnings screen in my driver app in flutter does not change the state of it in realtime using firebase

26 Jan 2022 by Member 15514073

My app screen does not change the state of it in real-time while updated in the firebase real-time database .. the earnings screen is updated after the driver ends the trip and collects the fares of the trip then updated total earnings and number...

Flutter admob ad not loading even after 5 days, ad failed to load

11 Oct 2020 by SagarRawat

I am trying to implement add to my app but the apps are not showing don't know what is causing this, I waited for 4 days still no ads are showing on my device, it shows ad failed to load 3, even on emulator it shows ad failed to load 3. don't...

Flutter

Flutter API post method can not send data to SQL server localhost. Show error "HTTP error 400. The request hostname is invalid"

20 Oct 2022 by enamul haque

In "bb" variable all data show in json format when i debugged. but show this error "HTTP Error 400. The request hostname is invalid". This json data is working in Postman Please Help!!!! What I have tried: void send() async { var...

Flutter chewie video player stuck on loading forever

1 Mar 2024 by Member 14933789

Hey, codeproject wonderful community! I am trying to implement the Chewie Flutter package into my app as a custom widget and I got everything down and made it as customizable as possible. It complies well, but when I run it on the web, android,...

Dart

Flutter

video

Flutter cloud firestore. Sorting by the number of elements in the collection

4 Aug 2022 by ROCKSTAR 2022

I am building a history app. When a person has viewed a story, the ID of the user who viewed that story is written to that story's database in the Readers collection. There is also a list with all the stories. And I want to sort these stories by...

Dart

Flutter

Flutter cloud firestore. Sorting by the number of elements in the collection

4 Aug 2022 by OriginalGriff

While we are more than willing to help those that are stuck, that doesn't mean that we are here to do it all for you! We can't do all the work, you are either getting paid for this, or it's part of your grades and it wouldn't be at all fair for...

Dart

Flutter

Flutter firebase: get data from subcollection

28 Aug 2023 by EBENEZER OCANSEY

In my app, person A makes a post in a collection called "ADS". Person B clicks on the post and clicks on the button to send a request to person A. This creates a subcollection called "REQUESTS". I want that in the case where person B clicks on...

Flutter

Flutter firebase: get data from subcollection

28 Aug 2023 by Andre Oosthuizen

Your code is generally on the right track, I made small tweaks for you but as your code is now, you should be fine - StreamBuilder( stream: FirebaseFirestore.instance .collection("ADS") .doc(widget.selectedAds?['Uid'] ?? "") ...

Flutter

Flutter firebaseauth - unrecognized selector sent to instance 0x20d326df8

30 Apr 2022 by Anar Aliyev 2022

I am trying to add Firebase Phone Authentication in my app but getting error every time when I want to send tel number to firebase. It states that - unrecognized selector sent to instance 0x20d326df8. I am using real IPhone not simulator. Here is...

Swift

Flutter

Flutter Getting Started: Tutorial 1 Basics

4 Jul 2018 by ThatsAlok

In this tutorial, I will provide step by step to build your first Flutter App

Flutter Getting Started: Tutorial 2 - StateFulWidget

9 Jul 2018 by ThatsAlok

Let's explore the world of StateFulWidget with respect to Flutter

Flutter Getting Started: Tutorial 3 Navigation

12 Jul 2018 by ThatsAlok

Flutter Navigation, Let's move among pages

Flutter Getting Started: Tutorial 4 ListView

18 Jul 2018 by ThatsAlok

Flutter ListView: A scrollable control for everyday need

Flutter Getting Started: Tutorial 5 Grid

21 Jul 2018 by ThatsAlok

Let's explore Flutter Grid view and MediaQuery

Flutter listview builder change the color of the button

19 Oct 2021 by Ghali Skalli

I'm making an movie lister app. I made my app like that: 1. The main.dart who run the project and contain all Tmdb (The Movie DataBase) process 2. The root_page.dart who contain all the "immovable" elements (app bar, bottom navigation bar, page...

Dart

Android

Flutter

Flutter mysql_client not returning correct datatype of encrypted string

17 Jan 2023 by Dan Sep2022

Hello, I'm trying to decrypt a text from MySQL db (stored in BLOB column) and I encountered with this issue where when I tried to decrypt that value I got an error saying Unhandled Exception: type 'String' is not a subtype of type 'Encrypted'...

MySQL

Flutter

encryption

Flutter mysql_client not returning correct datatype of encrypted string

17 Jan 2023 by Andre Oosthuizen

As per the documentation found HERE, try the following - var source = 'flutter app'; final decrypted = encrypter.decrypt64(source, iv: iv); For normal Direct decryption, you can use the decrypt method directly, as: final plainText =...

MySQL

Flutter

encryption

Flutter not detecting changes on global variable from different function

8 Mar 2023 by Richard MacCutchan

This is the same issue as your previous question at Type 'null' is not a subtype of type 'string' while trying to retrieve data from list into listview[^]. You need to look at the code at ... var custUsernameGet = await...

Dart

Flutter

Flutter not detecting changes on global variable from different function

8 Mar 2023 by Dan Sep2022

I have a function that will retrieve username from database and that username value will be stored in global string variable, everything works, and my goal is to display that username variable on the AppBar text but I keeps getting "Null is not a...

Dart

Flutter

Flutter not retrieving variable new value while calling in another class

14 Feb 2023 by Dan Sep2022

I have this StatefulWidget that supposed to retrieve data from MySQL database based on condition and add those retrieved values into an array so I can use the array values to be display on ListView. My Problem is that sometimes when the array...

Dart

MySQL

Flutter

Flutter ontab click event not responsive

16 Aug 2021 by Abraham William 2021

I am working on flutter footer navigation, I have a file where I initiate all parameters needed, like so: const Db5BottomNavigationBarItem({ required this.icon, this.title, Widget? activeIcon, this.backgroundColor, ...

Flutter