Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Users
Ask a Question
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions tagged dart
0
votes
1.4k
views
1
answer
dart - What is the relation between stateful and stateless widgets in Flutter?
A stateful widget is defined as any widget which changes its state within its lifetime. But it is a very ... and stateless widgets in Flutter? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.6k
views
1
answer
dart - Flutter: Expanded vs Flexible
I've used both Expanded and Flexible widgets and they both seem to work the same. What is the difference between Expanded and Flexible? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.3k
views
1
answer
dart - How to achieve precompiler directive like functionality
I'm developing an angular app, and it's recommended to use generated code for a lot of things running in ... automatic way to achieve this? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.4k
views
1
answer
dart - Instantiate a class from a string
In dart is it possible to instantiate a class from a string? For example: vanilla in javascript: var myObject = ... @"MyClass") alloc] init]; See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
4.2k
views
1
answer
dart - Unhandled Exception: InternalLinkedHashMap<String, dynamic>' is not a subtype of type 'List<dynamic>
I am trying to get the JSON response from the server and output it to the console. Future<String> login() ... List What could be the reason? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.5k
views
1
answer
dart - Flutter - Layout a Grid
I am trying to layout a 4x4 grid of tiles in flutter. I managed to do it with columns and rows. But now I ... seem to get the results I want. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.8k
views
1
answer
dart - How to upload images and file to a server in Flutter?
I use a web service for image processing , it works well in Postman: Now I want to make http request in ... I write the body of request? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.6k
views
1
answer
dart - Flutter Switching to Tab Reloads Widgets and runs FutureBuilder
The issue: I have 2 tabs using Default Tabs Controller, like so: Widget build(BuildContext context) { return ... done so by user.) See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.5k
views
1
answer
dart - Force Flutter navigator to reload state when popping
I have one StatefulWidget in Flutter with button, which navigates me to another StatefulWidget using Navigator.push( ... it should force redraw) See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.6k
views
1
answer
dart - Flutter: disable screenshot capture for app
I am making a Flutter app and I need to make sure the user is not able to capture screenshot of the app ( ... code for both Android and IOS? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.3k
views
1
answer
dart - Error: Only static members can be accessed in initializers what does this mean?
I have something like this. I am having difficulty understanding this error. Why does accessing filterController here ... I resolve this issue? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.4k
views
1
answer
dart - When should I use a FutureBuilder?
I was wondering when I should use the future builder. For example, if I want to make an http request and show ... ? Hope it's clear enough! See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.3k
views
1
answer
dart - How can I get the size of the Text Widget in flutter
I've painted a shape for the background of my content of Text. I want the background autoscale the Text, even ... code ... The bubble effect: See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.5k
views
1
answer
dart - How to change the application launcher icon on Flutter?
When I create an app with a flutter create command, the flutter logo is used as an application icon for ... the icons are generated somehow?. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
2.0k
views
1
answer
dart - Flutter setState to another class?
I have a root class RootPage which is a StatefulWidget which is always in view. I would like to change the body ... keep my Root always in view. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
2.0k
views
1
answer
dart - Flutter : Bad state: Stream has already been listened to
class MyPage extends StatelessWidget { @override Widget build(BuildContext context) { return DefaultTabController( length: ... listened to. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.4k
views
1
answer
dart - How to take a screenshot of the current widget - Flutter
I need to take a screenshot of the current screen or widget and I need to write it into a file. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.5k
views
1
answer
dart - How do I determine the width and height of an image in Flutter?
Assume I have declared my image in my pubspec.yaml like this: assets: - assets/kitten.jpg And my Flutter code is this ... 's Image to dart:ui's Image.) Thanks! Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.6k
views
1
answer
dart - Flutter TextFormField hidden by keyboard
NOTE: Im using Navigator.of(context).push to push ModalRoute, Hi I have page with ModalRoute with TextFormField ... and more, still same result please help me Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.5k
views
1
answer
dart - Flutter Countdown Timer
How can I do to put the value passed in the construction, to make a timer that rounds to the first decimal and shows at the ... , fontSize: 50.0), ), ), ); } } Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.6k
views
1
answer
dart - How do I use hexadecimal color strings in Flutter?
How do I convert a hexadecimal color string like #b74093 to a Color in Flutter? I want to use a HEX color code in Dart. Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.4k
views
1
answer
dart - How do I pass non-string data to a named route in Flutter?
I have many screens, and I'm using the Navigator. I'd like to use "named routes", but I also need to pass ... can I use a named route + send non-string data? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.8k
views
1
answer
dart - Flutter - Read text file from assets
I have a text file (.txt) that I'd like to be an asset that I can scan in later. In the pubspec.yaml, I ... test. Any ideas on how to properly do this? Thanks! Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.5k
views
1
answer
dart - Flutter how to programmatically exit the app
How can I programmatically close a Flutter application. I've tried popping the only screen but that results in a black screen. Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.9k
views
1
answer
dart - Flutter get context in initState method
I'm not sure if the initState is the right function for this. What I'm trying to achieve is to ... similar problem: Flutter Redirect to a page on initState Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.7k
views
1
answer
dart - Is there a way to load async data on InitState method?
I'm a looking for a way to load async data on InitState method, I need some data before build method ... .signInSilently(); } I will appreciate any feedback. Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.5k
views
1
answer
dart - Flutter- wrapping text
This question already has answers here: Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
0
votes
1.7k
views
1
answer
dart - How does the const constructor actually work?
I've noticed it's possible to create a const constructor in Dart. In the documentation, it says ... const constructor different from a regular constructor? Question&Answers:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
dart
To see more, click for the
full list of questions
or
popular tags
.
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question
Just Browsing Browsing
[1] How do I add a simple jQuery script to WordPress?
[2] javascript如何监控Network中的JS请求?
[3] Ant design pro global无法覆盖样式
[4] java - Thread.sleep() starts before my JButton text changes (The animation is too long) How to prevent this?
[5] vue 清除异步产生的定时器
[6] 在Windows上开发一个c++服务,能够在win7/win10上都能安装使用,应该用什么IDE+Framework?
[7] Python爬虫失败,
[8] Thinkphp6 在Docker中访问很慢,同样代码服务器上很快
[9] flex lexer - why my lexical analyzer can not recognize numbers and ids and operators
[10] 关于react绑定事件,闭包传参内存泄漏问题
2.1m
questions
2.1m
answers
60
comments
56.8k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
google
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
Django
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
广告位招租
...