Category "dart"

How to make background image to be fixed in flutter

I'm using an image as a background, and it looks good until I use the keyboard, how to solve that? before the keyboard is shown and that's after the keyboard is

Best practices to change app state from a package

I'm developing a standalone package which is currently inside an app like this: app/packages/my_package I created the package with the create command package te

Dart 'the constructor being called isn't a const constructor' when using FlexibleSpaceBar background property

When using the FlexibleSpaceBar widget in flutter I am unable to set the background property. According to the docs it's supposed to be a Widget. From the docs

Dart support for using Script Property Values in Regular Expressions

The Unicode regular expression documentation describes doing complex matches for text. Specifically, I am wondering about matching various scripts within a stri

How to make 2 FutureBuilders wait on the same Future in Flutter?

I have a Future which, when complete, adds some data to a ChangeNotifierProvider. Then I use the data in the ChangeNotifierProvider to populate some ListViews.

How to play Music (mp3, m4a etc) from Google Drive in Flutter

I want to play Music Files like mp3, m4a files from Google Drive in Flutter. So far, I'm able to fetch the link of files in my google drive Assets I'm using ass

Flutter : Handling error Dio Package (404,400 etc)

I'm learn searching data by ID with package DIO https://pub.dev/packages/dio, my problem is every time I'm type wrong keyword search, the app suddenly crash wit

Flutter auto_router: Error: Type 'NavigatorState' not found

Problem summary Hi, I have an issue getting the auto_route package up and running in a Flutter project. Following the official documentation, I have done the fo

How To Prevent Navigation Loops In Flutter

In my application I have 13 screens in total, some of them has links to other screens, I also have a drawer that has links to most of these screens. The followi

How to increase slider track width in flutter

In SliderThemeData trackheight is given but I want to increase the track's width. Here is my current code: SliderTheme( data: SliderThemeData( tra

Flutter - drawAtlas circular cutout

I'm trying to implement a circular cutout of an image and I am using drawAtlas for it. Here is my implementation so far: canvas.drawAtlas( image!, [ /*

How to get substring between two strings in DART?

How can i achieve similar solution to: How to get a substring between two strings in PHP? but in DART For example I have a String:String data = "the quick brow

How to change the application language with BlockBuilder?

The application needs to implement language switching at runtime. Wrote a bloc with event and state and called BlocBuilder in main.dart. But I don't know how to

Is it possible to share your location through flutter app

I built an app in flutter, dart to access the location of the user. I now want to share the current physical location of the user via Whatsapp, email etc but no

How is Dart "sound null-safety" different from Kotlin null safety?

This Dart official video states that Dart's so-called "sound null safety" is better than Kotlin's null safety design, because it can optimise the code based on

Create a Flutter module for desktop apps

Currently, when running the command flutter create -t module --org com.example app we are able to generate a Flutter module which we can add to a host parent ap

VS Code and Flutter/Dart, Widget Autocomplete not working

I'm working with some tutorials to learn Flutter and the one that I'm taking now uses VSCode. I actually prefer it to Android Studio because it doesn't overhea

Vertical divider inside ListTile header

I am attempting to add vertical divider between the leading portion and the title of a ListTile. I understand that Flutter now has a VerticalDivider widget,

blank page when I started web flutter debugging

looks like this : I have a problem when flutter web debugging. My launching project doesn't stop and displays a blank page.blank page like this : i try too we

In Flutter, why does the DraggableScrollableSheet show blank space when there are less children?

I want the DraggableScrollableSheet to stop moving up when there are less items in the ListView. Instead, blank space is created underneath to fill the entire s