Category "flutter"

Flutter Could not get unknown property 'plugin' for project ':app' of type org.gradle.api.Project. Error

I am getting this error when running my Flutter app: Launching lib\main.dart on Android SDK built for x86 in debug mode... FAILURE: Build failed with an except

type 'Future<dynamic>' is not a subtype of type 'Map<DateTime, List<Event>>'

Hi I'm trying to convert a Future list into a LinkedHashMap and I'm having But I'm returning a Future Dynamic This is my class class Event { final String cal

sending text and multiple images to whatsapp flutter on IOS its not workin

I want to send multiple images alongside the text on WhatsApp, the text is not a problem if it's going to be repeated on every image or just written once, curre

How to Handle API response model class if object is not Available in some situation on Same API Flutter Dart

I need an Help for API response handling. I've created model class to convert API res. My issue is on Type the API response is changed for example if type = 'Ap

Flutter MapBox - Unhandled Exception: type 'Null' is not a subtype of type

I am just following this guide https://github.com/Imperial-lord/mapbox-flutter, In turn by turn navigation, getting error like 'Unhandled Exception: type 'Null'

Flutter: Updating the more recent value while the user in viewing the page with streams

Am I thinking about this the right way? I created a function that takes in a value from firebase, value in seconds, and convert it into hours:minutes:seconds, t

Navigate to next question or item in quiz app in a flutter list

I am creating a quiz app in dart/flutter and I want to automatically navigate to the next question when an answer is selected. The questions and answers are in

How to post image to my server from Flutter?

I have a small server based on node JS, which communicates with Post Gre SQL database, and server is working on port 5000. I have route called uploadImage, whic

Flutter redux combined state dispatch action and update UI issue

I am learning redux. I have the following issues: My initial state does not seem to be taken into the account My actions are dispatched but they are not updatin

How to create a countdown in Flutter and Firebase?

I'm using Flutter to build an online auction app with two types of auctions (live auctions and off-site auctions). If the seller selects live auctions when uplo

How do I darken one container in a GestureDetector when I have multiple buttons created with a Widget constructor in Flutter Dart

So I have a piece of code where I need to add multiple buttons to the same page. I am using a GestureDetector since I don't like the onPress animation for the a

Flutter can't install firebase onto macOS

I tried to install the firebase package for flutter. After running flutter pub add firebase_core It states "successfully installed". When I then try to import

Align children with first child in Column

How can I align my widget to take the same width as ClipRect image? Right now it overflows in my screen. Find attached how it is and how I desire my output woul

flutter app - trending posts by using google analytics data api

In my app, users create posts and I'd like to show trending posts by the number of views, comments, etc in a specific date range. To do that I thought I can cre

What's the use case of TableCell?

I can show widgets as children of TableRow. They are displayed correctly. What's the use case of TableCell in flutter? TableRow(children: [ widget1,

Error: Method 'addPostFrameCallback' cannot be called on 'SchedulerBinding?'

how can I fix this error in flutter with android studio /C:/src/flutterSDK/flutter/.pub-cache/hosted/pub.dartlang.org/get-4.6.3/lib/get_navigation/src/snackbar/

Flutter[Android]: Not able to release App with Manage External Storage Permission

We need to allow users to store files in the external storage and for the same, we use MANAGE_EXTERNAL_STORAGE permission in our application. Ideally for the an

"Looking up a deactivated widget's ancestor is unsafe." with StatefullWidget

I can't find any answers for my problem. In the code below, everything was perfect if I use a "GestureDetector" with a "Image" instead the Dismissible with the

flutter on click download image from firebase

Here, when I add a new picture, it appears here and it can be opened to a full screen, but when I click I want to download the picture that I long pressed on to

My first Android app was going great until I tried getting it signed

I've been developing using Flutter/Dart in Android Studio since December and want to finally open it up to others for internal testing. Whenever I upload my app