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New post on /r/flutterdev subreddit:

When call setState?
Hi Everyone!​When do we have to call setState method in stateful widget? I know we need call when we change state object which will cause change in UI. But do we need call when there will be no change in UI? Using Flutter example if we are increment counter but not display in UI (just store in in variable) do we need call setState or will variable still be update so we can use incremented value later if pass to new widget.​I have been read Flutter docs to try answer my question but no find.https://docs.flutter.io/flutter/widgets/State/setState.html

December 12, 2018 at 10:57PM by Flutter_Dev
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New post on /r/flutterdev subreddit:

Automatic screenshot generation
Every time i update a flutter app on the ios app store and the google play store it took me a long time to take screenshots for every device (espacially ios with a lot of different screen sizes) and every language.Is there any method to automatise this process?I tried already fastlane but doesent found there any functions to generate screenshots with flutter.Thanks for helping!:)

December 13, 2018 at 12:26AM by Robin3941477335
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New post on Flutter Dev Google group:

Flutter Firestore Custom Objects to listview
I'm new to flutter and firebase and building a test application to see how it works and what I can and cannot do. I have a Firestore my database currently looks like this //Collection "California":{ //Document "San Diego":{ //Map/Object

December 13, 2018 at 03:14AM by Tristian Nugent
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New post on /r/flutterdev subreddit:

How to highlight a displayed text in flutter?
I’m building a mock writing test app with flutter. I need to display the writing prompt in the top of the screen while the user can write the essay below.I’d like to allow the user to select the key words in the prompt and highlight them to help them stay focused on the topic while writing. How can it be achieved?

December 13, 2018 at 07:06AM by ericliu24
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New post on Flutter Dev Google group:

setState() don't refresh scaffold body ??
Hi all, here is a simple code : class _MyHomePageState extends State with TickerProviderStateMixin { Widget mainScaffoldBody; void _selectedTab(int index) async { switch (index) { case 0 : // Accueil setState(() { mainScaffoldBody = null;

December 13, 2018 at 08:34AM by Julien P.
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New post on Flutter Dev Google group:

Unable to Install Project on ios Devices.
2018-12-13 14:01:14.949 xcodebuild[10103:82207] [MT] PluginLoading: Required plug-in compatibility UUID D7881182-AD00-4C36-A94D-F45FC9B0CF85 for plug-in at path '~/Library/Application Support/Developer/Shared/Xcode/Plug-ins/DerivedData Exterminator.xcplugin' not present in

December 13, 2018 at 10:14AM by Asif Hussain
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New post on /r/flutterdev subreddit:

Asynchronous Programming in Flutter with Dart (IUE Presentation)
I recently gave a presentation in our university about Flutter and Dart. Please enjoy: https://www.youtube.com/watch?v=yyvTrXCDdYgFrom the video description:Understanding how asynchronous programming works can be a challenge. In this talk tried to give an intuitive introduction to it and compared it to alternatives. I try to answer these questions throughout the presentation:- What can you with Dart?- Why should you use Dart and Flutter?- What is asynchronous programming and how does it relate to callback functions, threads or promises/futures?- How can we write asynchronous code in Dart?- How does asynchrony help in Flutter?This was a presentation that I gave in Izmir University of Economics. It is an improved version of a talk I gave about a month earlier: https://gdgizmir.org/schedule/day1?se...I use ideas from Florian Loitsch's talk in 2015 https://www.youtube.com/watch?v=MUDOI... Hope you find it useful!​

December 13, 2018 at 12:43PM by gazialankus
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New post on /r/flutterdev subreddit:

Help a friend out
I made a custom input widget by wrapping Textfield in some widgets and so on. Now I can't reach the onChanged property directly from input. I tried making a property in my custom widget but couldn't implement it properly. I googled passing variables between widgets and it seems a hard thing to do. So any help?

December 13, 2018 at 12:24PM by omarahmad293
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New post on Flutter Dev Google group:

Codemagic - Dedicated CI/CD for Flutter
Hey, I've been getting some questions about CI/CD regarding Flutter. Thought I would post here as well - Nevercode announced Codemagic during Flutter Live 2018 in London. Free CI/CD service for Flutter developers. Currently supporting GitHub with Bitbucket on the way and GitLab coming up next

December 13, 2018 at 03:26PM by mar...@nevercode.io
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New post on /r/flutterdev subreddit:

I’m a CTO for an IOT startup, I love flutter. Can my team use it for desktop, web, and mobile? If so what are the limitations?
Here are some of the features the app should support cross-platform:Real-time analyticsQR code scanningAdmin like dashboardGeo location / mapping libsNetwork topology ux ( with drag and drop )I’m a Go, python, NodeJS developer and looking at Dart, I’m not too overwhelmed by the learning curve.Im not sure if flutter can do desktop and web and share the same assets and modules.Any advice is appreciated as this decision is highly critical.

December 13, 2018 at 04:07PM by pratiks3
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New post on /r/flutterdev subreddit:

Connecting to Dart VM Service..
I'm trying to test a simple JSON RPC Java client, and connect to the Dart VM Service using TCPover a Socket, sending an initial JSON "packet" and looking for a response from the server.It's being run from the desktop on Windows. Is there any command I should be entering from a command line to get the server going, and what hostname and port number should be used for the Socket. Also, what should the initial JSON "packet" be? 'getVersion'? I've been looking at the vm/service notes. Thanks!

December 13, 2018 at 05:54PM by joes131
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New post on Flutter Dev Google group:

Rendering Performance
I'm interested in adopting Flutter in my future apps, so I tryied out various apps developed in Flutter for both iOS and Android and compared them with some native ones. In the Flutter apps I encountered frameskips and the animations are not always fluid like native ones. In your opinion is this

December 13, 2018 at 07:41PM by Simone Pauro
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New post on Flutter Dev Google group:

Traffic layer of google maps flutter
Hello people, I'm trying to get the traffic layer on my google map. I'm currently using the Google Maps Flutter plugin but I don't think they have the traffic layer yet. Any help?

December 13, 2018 at 08:56PM by Udana Methmal
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New post on Flutter Dev Google group:

Wrapping a proper flutter widget to an API function
Hello friend, I need help in wrapping a proper Flutter widget to call an API function in order to post to the backend. Below is the link to my code: https://ift.tt/2RVuqDi

December 13, 2018 at 09:10PM by Azeez Akinsola
https://ift.tt/2Qv69aJ