Category "flutter"

Flutter Error:Please ensure that the SDK and/or project is installed in a location that has read/write permissions for the current user: Flutter Error

I have just started mobile app development and I choose flutter as my first mobile app developing language(I know python,html,javascript already). I have instal

Flutter Autocomplete widget delays updating suggestions

I'm facing a problem using the Autocomplete widget. Basically, the list of options that shows up while I'm typing in the text field is delayed by one character.

Detect target phone number on incoming call is it for SIM 1 or for SIM 2 for Android 29+?

I have tried all of the stack overflow solutions but it didn't work, all solutions are outdated I tried both below codes but it always return the -1 int slot =

How to calculate age using datetimepicker?

Im trying to figuring out how to calculate the age of user in my flutter application. What I want is only valide user which are have a min age of 18. Heres my c

Hover Color for Icon

I am trying to implement a favorite Button in Flutter. I am happy with the properties when clicking the button but I am not happy with the hover animation. I wa

App Tracking Transparency implementation with firebase/facebook analytics

Since ios 14 developers are required to use App Tracking Transparency framework to request permissions from user for tracking. My app is running in flutter and

Radio button style using icon buttons in flutter

I want to create a radio button style voting system using icons in Flutter (Dart) which looks like this: vote icons The concept is simple: The page will display

NoSuchMethodError (NoSuchMethodError: The method 'forEach' was called on null. Receiver: null Tried calling: forEach(Closure: (dynamic) => Null))

i got this problem while trying to fetch data from api NoSuchMethodError (NoSuchMethodError: The method 'forEach' was called on null. Receiver: null Tried call

Release APK version not updating

I´m writing a flutter application and it is currently on version 0.7.0, I already specified the version in pubspec.yaml and the Debug APK is already on th

I cant run Geolocator.getCurrentPosition() in background (Flutter)

when I try to getCurrentPosition while the application in the background or terminated, it returns ' MissingPluginException(No implementation found for method g

Firebase data is not fetching in flutter app

I'm developing a simple app to learn firebase, the creation of data is working fine, but they can't fetch the created data. and there is no error showing. just

Flutter Speech to text listening continuously

Please how i can implement Flutter Speech to text listening continuously without typing in a button to start Please give some suggestion about this. Thanks in a

Send Keyboard Event Flutter

I am trying to find a way to send keyboard events from my flutter app to a WebView that I have open in app. For example, the WebView has some JS code with an Ob

Flutter WidgetsBinding.instance.addPostFrameCallback((_) error

Hello friends first off all sorry for my bad English. I'm getting an error when I start debug my code in flutter-Dart. import 'package:flutter/foundat

How to load and download the data from a remote directory in flutter?

I have a directory full of pdf's with name as A00-2020-01.pdf The A00 is the user ID, 2020 is year, 01 is month And the directory is full of 1800 members with

Flutter: Clicking on TextFormField redirects me back to Home:

I only have TextFormFields in 2 places in my app. Once in my Login Widget and second in my PinWidget, which is meant to set a personal pin. Home: is always the

how to give permission write only to sqlite db in flutter

Here's my code: Future<void> updatevalue(int b, int value) async { await initDatabase(); await _db.rawQuery('UPDATE chines_recipe SET favor

Android & iOS notification icons (grey) while using flutter_launcher_icons 0.9.2

I believe the question has been asked in various places like GitHub, Stackoverflow, Reddit & other forums. Using flutter and firebase notifications some dev

A value of type 'Null' can't be assigned to a parameter of type 'Widget Function(BuildContext, CounterState)' in a const constructor

This is an project where I'm trying to implement (and understand) Bloc methodology. I got the error: A value of type 'Null' can't be assigned to a parameter of

flutter build ios --release fatal error: module 'add_2_calendar' not found

I want to make a release for my project who work perefctly in dev mode. When I make only flutter ios build it works fine but flutter build ios --release doesn'