Category "dart"

Problem converting FirebaseAuth.instance.currentUser to Future in Flutter FutureBuilder

I am new to flutter and have taken this course which uses an older version of FirebaseAuth that returns FirebaseAuth.instance.currentUser() as future to Future

Convert time to am/pm flutter

How to convert the time to am/pm ? I have this output I/flutter (17720): 9:00:00 I/flutter (17720): 11:00:00 I/flutter (17720): 12:00:00 This is what I have

How to access window.navigator.serial in flutter web

On some browsers there exists the the property serial on the window.navigator object. I can see it on chrome but not on safari. How can I access that object via

Android build issue with 'scan' plugin - Flutter

Android build failing with following exception. Plugin: scan [https://pub.dev/packages/scan] FAILURE: Build failed with an exception. What went wrong: Executio

Flutter: How can I make a Random color generator Background

Generate random colors return new RaisedButton( padding: EdgeInsets.symmetric(vertical: 30.0), color: Colors.primaries random List <blue,gr

Flutter fetched Japanese character from server decoded wrong

I am building a mobile app with Flutter. I need to fetch a json file from server which includes Japanese text. A part of the returned json is: { "id": "

How to catch SocketException using the http library?

This problem has already been pointed out by others (like here). Althought I may have understood the cause, I still haven't found a solution when using the high

How can I Store Document in chronological order in firebase with flutter

I am coding an appointment booking application I want to store my own created document in firestore database but in chronological order. So that I can see my la

How can I show a snackbar after navigator.pop(context) in Flutter?

We need close one screen and open a second screen. And show snackbar on the second screen from first screen. I tried to use Navigator.push, but this screen is a

Lint don't override field in flutter

I'm new in using Lint and I'm getting a blue underline on my UserModel variables with a message of Don't override fields and Annotate overridden members. I'm ha

Flutter: [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: PlatformException

I am new in Flutter.I face a problem about [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: PlatformException. This is my Debug Console: Launch

Suddenly can't fetch any data inside firebase firestore, after trying to use tutorial that contain firestore emulatore

i tried following some of youtube tutorial video and saw a firestore emulators connect. but after i connect the app. the screen that works properly suddenly don

How to convert mnemonic to 32 byte seed?

I have a 24-word mnemonic, and I want to convert it to public and private keys. This is how I did it: const hex = HexCoder.instance; final seed = bip39.mne

dart pub global run webdev serve Building package executable... Failed to build webdev:webdev:

C:\flutter\bin (stable) λ dart pub global run webdev serve Building package executable... Failed to build webdev:webdev: /C:/Users/valen/AppData/Roaming/

Flutter Hive save custom object with list of custom objects gone after restarting app

I am using the Hive- Package in my project to store some data locally. That has been working fine so far, but now I am facing an issue: I have a Custom-Class wh

Flutter RawKeyboardListener listening twice?

What I am trying to achieve is when viewing this widget, the RawKeyboardListener starts listening straight away when the TextField is not selected/in focus. It

Multiple Dependent dropdown in flutter

I am trying to build multiple dependent dropdown on flutter. The second one depend on 1st one. here is the code to the dropdown I have implemented. Container(

How to add a name to a chart on flutter, x- and y-axis?

I have been working with the online gallery of Flutter charts (https://google.github.io/charts/flutter/gallery.html) but I'm struggling to add a title for x &am

how can i use more than one tflite flutter model?

i created one tflite model. i want to pass string to model and label according to user selection. for example, if your select model1 it will load model two, if

How to specify a TimeZone when creating a DateTime object in Dart/Flutter?

Dart?flutter does not appear to allow a timezone (eg: "Australia/Sydney" or "America/Detroit") to be specified when creating a DateTime object. Either the local