New post on /r/flutterdev subreddit:

Learning resources
Learning flutter and dart is my first go at programming outside of a college course on Java 12 years ago. I've been going through a udemy course and the official docs and I'm learning a lot but I feel like I'm missing some fundamentals. The instructor for the course I'm taking mentioned an "iterable", I realized that I had no idea what this means, and after some googling I'm still not 100% sure. This is just an example, but I feel like I need to build on the fundamentals, especially pertaining to object oriented programming. Can anyone suggest a basic book or article, paper, electronic or otherwise, that can help me with this?

September 24, 2019 at 04:41AM by rumpel4skinOU
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New post on Flutter Dev Google group:

Flutter CachedNetworkImage doesn't work, loading images again when scrolling up to bottom or bottom to up
I'm trying to work with cached images. I followed CachedNetworkImage

New post on Flutter Dev Google group:

variables initialing null
hello guys these are my codes.please see them: void sortMyItems(List pro, Map

New post on /r/flutterdev subreddit:

Adding a gradient to a progress bar
Hi, Let me first say I started with flutter last week so I apologise in advance for my lack of knowledge.I'm using a progress bar in my application:FAProgressBar(
size: 50,
currentValue: dailyProgress,
direction: Axis.vertical,
verticalDirection: VerticalDirection.up,
progressColor: Colors.amber,
backgroundColor: Colors.grey[300],
animatedDuration: const Duration(milliseconds: 2000),),In reality it looks like this: https://imgur.com/NZUoZtWI want it to look like this: https://imgur.com/gFCqfzRHow would you recommend me to proceed? It seems impossible to replace the progressColor property with a gradient. Is there another package I can use? Any suggestion is appreciated.

September 24, 2019 at 11:24AM by ynwa94
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New post on /r/flutterdev subreddit:

Enabling Proguard before release?
Hi Everyone!I am going to release my app to Google Play Store. I see in Flutter doc there is section on enabling Proguard.But I have trouble doing this. I am use many third party plugin (Firebase, Storage …) and enabling Proguard cause problem.I was think Dart is compile to machine code, so how can someone reverse engineer? Also I am only use open source package so I not care about obfuscate it.Is it enabling Proguard worth to do?Thanks everyone!

September 24, 2019 at 12:27PM by Flutter_Dev
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New post on /r/flutterdev subreddit:

Flutter: How to Use the WebView Plugin
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September 24, 2019 at 01:41PM by catapop
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New post on Flutter Dev Google group:

Flutter Plugin not reaching onActivityResult within plugin and reaches with result to MainActivity
Need some help on plugin development with flutter on Android. Facing the following issue. class MyPlugin : MethodCallHandler, PluginRegistry.ActivityResultListener{ override fun onActivityResult(requestCode: Int, p1: Int, data: Intent?): Boolean { Doesnt reach here - Actually it should

September 24, 2019 at 02:20PM by Muthaiah Thiagarajan
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New post on /r/flutterdev subreddit:

Run Flutter integration tests on real devices with AWS Device Farm and Sylph
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September 24, 2019 at 02:44PM by Gigatronbot
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New post on /r/flutterdev subreddit:

Your Favorite tutorials for 3 hour long Flutter study jams
Hey, My name is Vince Varga and I'm organizing Flutter meetups in Munich.One of the upcoming events is a study jam/coding night/hackathon (whatever you want to call it): Around 15-30 developers meet after work and practice Flutter for 2-3 hours. The attendees have a lot of freedom on how they want to spend that time and most of the attendees should be able to progress independently (though, of course, we try to help each other). At the end of the event, attendees are encouraged to share what they worked on with the rest of us (spontaneous lightning talks, around 5-10 minutes each).I want to prepare a list of tutorials that can realistically be finished in 3 hours for the attendees so that they don't need to waste the first hour on finding a good tutorial. Apart from the official codelabs for Flutter and Dart, can you recommend other tutorials, blog posts, youtube videos that you really enjoyed (or created) and can be used for learning Flutter? At the end of the event, it would be great if the developers have something they are proud of.Beginner and advanced topics are all welcome. Thank you for your time.

September 24, 2019 at 03:43PM by serial_dev
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New post on /r/flutterdev subreddit:

UI App design
So I am building an app and I realized that the UI is ugly if I don't have a prototype beforehand. So I wanted to ask if there is a good tool for prototyping a UI design?

September 24, 2019 at 03:13PM by Dan7nm
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New post on Flutter Dev Google group:

What do you think about mvc architecture?
Hello everyone, I cannot decide which architecture should I use in Flutter, I come from using 'mvvm' in Xamarin and I was trying to find something similar to it, maybe you guys can help me out with some doubts I have. The main objective of my work is to split the logic code and design, I found

September 24, 2019 at 05:03PM by Francesc Arolas
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New post on /r/flutterdev subreddit:

Is the way he builds responsive layouts the best practice?
Hey, so I watched this video that was posted a few days ago. https://youtu.be/afBmGC63iIQSo at 19:00 of the video, he mentions that there may be more overhead to his approach but it is the cleanest way to build responsive layouts for all screen sizes that also allows text to keep the correct ratios.Thoughts on this? Are there any better solutions that work?

September 24, 2019 at 05:14PM by glancer000
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New post on /r/flutterdev subreddit:

Twitter Bot @FlutterMerge posts merged PullRequests
https://twitter.com/FlutterMerge

September 24, 2019 at 06:10PM by passsy
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New post on /r/flutterdev subreddit:

Native ARCore
Hi All, we're updating an Augmented Reality app (WallaMe) and we wonder if the Flutter native integration with ARCore is something that will happen.Does anyone know?

September 24, 2019 at 07:01PM by Stefano68
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New post on /r/flutterdev subreddit:

Flutter NetworkImages Flashing
In my App, I use a lot of NetworkImages and Streambuilder's, and my images keep blinking when I navigate through the app.Sample VideoI don't want to use FadeInImage .There is a way that my images keep loaded?I have tried:Replace the Image Provider to one that uses Cache;Use AutomaticKeepAliveClientMixinSample code:class _RankingPageState extends State<RankingPage>with AutomaticKeepAliveClientMixin {​Container(width: MediaQuery.of(context).size.width,margin: EdgeInsets.fromLTRB(widget.spaceBetweenPages,widget.marginTopBottom,widget.spaceBetweenPages,widget.marginTopBottom,),decoration: BoxDecoration(color: Colors.white,borderRadius:BorderRadius.all(Radius.circular(20)),boxShadow: widget.boxShadow ?? [],image: DecorationImage(fit: BoxFit.cover,image: AdvancedNetworkImage(item.picture ?? "",useDiskCache: true),),),),

September 24, 2019 at 06:50PM by justforproblems
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New post on /r/flutterdev subreddit:

60 Days of Flutter :'Building a Messenger from Scratch' : Day 36–38 : Chat Attachments - Seamlessly Upload and Retrieve Files using Firebase Storage
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September 24, 2019 at 11:05PM by aditya_gurjar
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New post on /r/flutterdev subreddit:

Dart asynchronous programming: Futures
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September 24, 2019 at 10:36PM by EngineerScientist
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New tweet from FlutterDev:

✨Futures are everywhere in Dart!

Future API Tips:
Simulating delays and error conditions
Flutter's FutureBuilder to update UI

More in this article by @kwalrath, inspired by @redbrogdon's video. #asynchronouscode

Read here ↓ https://t.co/RXXoyU2QXg— Dart Language (@dart_lang) September 24, 2019

September 24, 2019 at 11:26PM
http://twitter.com/FlutterDev/status/1176608766852096000

New post on /r/flutterdev subreddit:

FlutterUI - Minimal Designs - Fruit Salad - Speed Code
https://youtu.be/6vsw8Z7uYlM

September 24, 2019 at 11:33PM by rajayogan27
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New post on /r/flutterdev subreddit:

Does a Swift App provide a better UX than Flutter on iOS?
Hi friends.I am pitching Flutter for developing a complex Digital Health app that will run on iOS, Android and Web.Client is concerned if using Flutter instead of Swift would cause a less "native" or "awesome" user experience for patients and doctors.Would any of few have ideas if this could be true? And if so in which areas?Functionality needed includes complex screens, live UI, map & routing APIs, HealthKit connectivity, FHIR, Bluetooth and possibly NFC connectivity ...TIA,Sumeet

September 25, 2019 at 06:19AM by sumeetakumar
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New post on /r/flutterdev subreddit:

Bloc Scope and lifecycle
I like the bloc patterns simplicity and sensibility. I created some sample applications to see how it works in action. I also skimmed through some tutorials and materials that I could find.But still I have problem with two aspects of it.First, what is the scope of a Bloc? Does blocs closely related to a component, or are they cross component objects? Both of these makes some sense. On one hand I think that a Bloc is encapsulation of the business logic of the component. But on the other hand, I can think of it as a cross component business logic. For example, if we consider a user information widget which shows on the corner when the user is logged in. This component might have a bloc; which can be used on user edit screen, or some other screen depending on the information it has.Second Question is about lifecycle and creation of the blocs. Admittedly it depends on the first question. Most of the blog posts advocate to create and dispose blocs in the Statefull components. But they leave out the fact that it makes testing those components very hard, as the bloc cannot be mocked, and because it usually uses remote calls and all, testing the widget becomes a night mare.

September 25, 2019 at 03:44AM by arashbijan
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