New post on Flutter Dev Google group:

How to prevent Flutter widget tree rerendering on state update and performance improvement
I have been trying to build an app using flutter and I am having a hard time figuring out certain concepts in flutter. I am hoping to find some answers here. Preface: App dependencies: *flutter_mobx,auto_route,get_it*. I am building an app where I need to show some alerts. I have created a

March 26, 2020 at 06:34PM by Ganesh Rathinavel
https://ift.tt/2WN5gMj

New post on /r/flutterdev subreddit:

Flutter Drivers Tests on AWS
Is there a way to run Flutter Driver Tests on AWS Device Farm other than sylph? I have looked around a lot but haven't found anything other than this. https://github.com/mmcc007/sylphI am also open to other options to AWS if they are well supported and run driver tests without much tinkering.

March 26, 2020 at 06:25PM by aditya_gurjar
https://ift.tt/3ajWny0

New post on /r/flutterdev subreddit:

32+64 bit Android Flutter module and download app size?
Hey, we will be adding Flutter module to existing apo and I'm worried about potential increase of download size.Android studio reports increase in download size by about 18MB after adding Flutter. At the same time App Store build is increased by just 8MB.We publish only one APK to Google Play Store and maybe this is the problem. Should we generate and publish separately 32 and 64 bit versions to mitigate this issue?Or is Play Store smart enough to figure this out, cuz App Store is. In App Store Connect I have very detailed breakdown for every iDevice having different cpu architecture and screen density, but in Google Play Console I see only one number.Thank you

March 26, 2020 at 06:13PM by chrisrutkowski
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New post on /r/flutterdev subreddit:

Is BloC pattern worth the hassle?
I have been working on BloC for multiple choice quiz app and it's just painful. I'm thinking now to try another state management like Provider

March 26, 2020 at 09:25PM by tewojacinto
https://ift.tt/2Juronb

New post on Flutter Dev Google group:

Flutter - WebVIew doesn´t work with HTTP
Hello, I´m trying to use Webview on my flutter App. *My problem: Webview only works with HTTPS protocol, pages with HTTP doesn´t work.* // "https://ift.tt/39jkGLa" // "https://ift.tt/2UDpky9", Both applications are build by my company,

March 26, 2020 at 08:47PM by Bruno Zan
https://ift.tt/3boUSyo

New post on /r/flutterdev subreddit:

Custom DropDown | Flutter UI
https://www.youtube.com/watch?v=j5DkShqvIAU&feature=share

March 26, 2020 at 10:02PM by prateeksharma1712
https://ift.tt/2UkGNwd

New post on /r/flutterdev subreddit:

Can we view RTI images on flutter app?
Hello everyone, few weeks ago I started learning Flutter.Came up with a task which is, if I can manage to view RTI images in a flutter app in approximately the same way they are being viewed in WebRTIViewer (demo).I don't know how to move forward with this.Besides, the real question is, if this even possible? If not, can I code from scratch using Dart to build something which directs the users to a route where they can view the RTI images in the app itself?

March 26, 2020 at 09:49PM by IamDheerajS
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New post on /r/flutterdev subreddit:

Going Walkabout - Flutter and Hiding Trips and Posts and Blocking Users
https://youtu.be/0e458I3ghq8

March 26, 2020 at 10:33PM by aadjemonkeyrock
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New post on /r/flutterdev subreddit:

A flutter package that creates some cool decoding text effects.
https://ift.tt/2UD9P9w

March 26, 2020 at 10:56PM by bawaaal
https://ift.tt/2wEv8iX

New post on /r/flutterdev subreddit:

Best practices when developing image resources API for Flutter clients?
What are the things to consider in your Flutter app when downloading image resources? Are there general image size resolutions for one size fits all (what are they?) or should device types be taken into consideration for your API when fetching images?

March 27, 2020 at 12:02AM by knarf74
https://ift.tt/2JeUqqH

New post on /r/flutterdev subreddit:

aes_crypt | A Dart library for encrypting/decrypting files, plain text and binary data in AES Crypt file format
Today I have published my first Dart package: https://pub.dev/packages/aes_cryptIt is a library for Dart and Flutter developers that uses 256-bit AES algorithm to encrypt/decrypt files, plain text and binary data. It is fully compatible with the AES Crypt file format and can be used to integrate AES Crypt functionality into your own Dart or Flutter applications. All algorithms are implemented in pure Dart and work in all platforms.

March 27, 2020 at 01:48AM by alexgusev
https://ift.tt/3dx1I74

New post on Flutter Dev Google group:

How to use Navigator to switch pages (replace - not load new page on top of old page)
Hi all, I have an app I am writing and each page uses an app bar at the top that contains a drawer widget. Each page on the drawer menu is a base level page and shouldn't be loaded on top of the previous page, but should replace it. I have created a stateless custom drawer widget to use in each

March 27, 2020 at 03:49AM by Paul Coshott
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New post on /r/flutterdev subreddit:

Flutter Neumorphic Expenses Pie Chart
https://youtu.be/rkOc8WbgPqw

March 27, 2020 at 04:23AM by thehappyharis
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New post on /r/flutterdev subreddit:

Flutter Design Patterns: An overview of the Bridge design pattern and its implementation in Dart and Flutter
https://ift.tt/2JfcxN4

March 27, 2020 at 08:24AM by mkobuolys
https://ift.tt/2xqWqt9

New post on /r/flutterdev subreddit:

Futures, Streams and Firebase Billing
so my understanding is that using Firebase with futures will do single fetches, for example, with a press of a button, you get a list of products and that's it. With streams however, a connection is opened and any changes to the products for example a price change will instantly be reflected in the app whereas with futures, you would have to make another call to get the updated price.My question therefore is, since one approach is opening and maintaining a connection (streams) and the other isn't (futures), how do the two fare as far as Firebase billing is concerned? is one approach more costly than the other? assuming that you do everything right like disposing streams and stuff.

March 27, 2020 at 10:58AM by A-PRYME
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New post on Flutter Dev Google group:

How do I implement a horizontal draggable sheet?
I am trying to implement a widget which you can drag into video from the side of the screen. Like the stock android calculator has. Which widget do I use? I have posted the question on stackoverflow. If you can provide an answer there it will be amazing.

March 27, 2020 at 02:17PM by savarav abhirham
https://ift.tt/2QRq2GZ

New post on /r/flutterdev subreddit:

i can't set backround task
when i add Application.java and change the xml file like descrepted in backgound location i get this error :/home/walid/Desktop/covid19/covid19/android/app/src/main/kotlin/com/example/covid19/Application.java:17: error: incompatible types: PluginRegistry cannot be converted to FlutterEngine
GeneratedPluginRegistrant.registerWith(registry);
^
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
1 errorFAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ':app:compileDebugJavaWithJavac'.Compilation failed; see the compiler error output for details.
Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
Get more help at https://help.gradle.orgBUILD FAILED in 4m 52sApplication.java codepackage com.example.covid19;
import com.lyokone.location.LocationPlugin;
import io.flutter.app.FlutterApplication;
import io.flutter.plugin.common.PluginRegistry;
import io.flutter.plugins.GeneratedPluginRegistrant;public class Application extends FlutterApplication implements PluginRegistry.PluginRegistrantCallback {
u/Override
public void onCreate() {
super.onCreate();
LocationPlugin.setPluginRegistrant(this);
}
u/Override
public void registerWith(PluginRegistry registry) {
GeneratedPluginRegistrant.registerWith(registry);
}
}android sdk 28
Flutter 1.12.13+hotfix.8

March 27, 2020 at 03:31PM by walide67
https://ift.tt/2xwrmZe

New post on /r/flutterdev subreddit:

Creating Widget as a local variable?
I myself prefer to separate everything into its own StatelessWidget. However, I came across some code that initialize the widget as local variables and then use it. While I do not like it, but I am struggling to find a reason of why we shouldn't do it.``` class MainWidget extends StatelessWidget { final _firstText = const Text('first text'); final _secondText = const Text('second text');@override Widget build(BuildContext context) { return Column( children: <Widget>[ _firstText, _secondText, ], ); } } vs class MainWidget extends StatelessWidget { @override Widget build(BuildContext context) { return Column( children: <Widget>[ _FirstText(), _SecondText(), ], ); } }class _FirstText extends StatelessWidget { @override Widget build(BuildContext context) { return const Text('first text'); } }class _SecondText extends StatelessWidget { @override Widget build(BuildContext context) { return const Text('second text'); } } ``` Could any one give me a reason why we should do one to the other?

March 27, 2020 at 04:23PM by astral_dragon12
https://ift.tt/2QQFdjM

New tweet from FlutterDev:

DartPad offers some of the same refactoring features as Flutter's plugins for Android Studio and VS Code.

💡Check out this example and see how to center a widget with just a few keystrokes! #FlutterFriday

Example here &rarr; https://t.co/WBg7Qakh71 pic.twitter.com/KQIhZxzI0E— Flutter (@FlutterDev) March 27, 2020

March 27, 2020 at 05:34PM
http://twitter.com/FlutterDev/status/1243577092047921152

New post on Flutter Dev Google group:

Android toolchain - develop for Android devices
[image: Untitled.png]

March 27, 2020 at 09:57PM by Mohaned Omar
https://ift.tt/2WO0nms

New post on /r/flutterdev subreddit:

<b>&#128014; Recap: speeding up your Flutter development process, Flutter Europe and more...</b>
Hey everyone &#128075;We hope you're all staying safe during this crazy time.As you may have noticed, we're a little bit different than the typical "newsletter" in that we try to pull out interesting themes from the latest news and cover those specifically. If there is a particular topic you'd like to see us cover in the future, let us know in the comments.Don't forget you can always <a href="https://flutterigniter.com/snacks/">get these recaps delivered straight to your inbox</a>.____Mobile DevOps to the rescue &#128588;Setting up continuous delivery pipelines, publishing processes, and automated testing aren't nearly as sexy as actually building apps, but getting something in place from the start will save you tons of pain in the long run. Tools like <a href="https://fastlane.tools/">Fastlane</a> and <a href="https://codemagic.io/start/">Codemagic</a> are free-ish and are a great place to get started.<strong>The Flutter Testing Cookbook</strong>...want to know how to test a route? How about opening a drawer in your tests? This <a href="https://github.com/gadfly361/flutter_test_cookbook/blob/master/README.md">community-driven cookbook</a> is a great resource as you start writing tests.<strong>Screenshot testing with the Golden Toolkit</strong>...eBay Motors, an earlier adopter of Flutter, just released a new package called <a href="https://pub.dev/packages/golden_toolkit">golden_toolkit</a> that allows you to automatically verify that your app looks the way it's supposed to using visual regression testing. <a href="https://tech.ebayinc.com/engineering/ebay-motors-screenshot-testing-with-flutter/">Read the blog post</a>.<strong>Flavors in Flutter</strong>...need to easily build different configurations of your app for local development, testing and production? With Flavors + Fastlane, <a href="https://dev.to/orestesgaolin/flavors-in-flutter-with-fastlane-yet-another-guide-1799">it's easy</a>.<strong>Continuous delivery with Fastlane</strong>...admittedly a dry read, but this <a href="https://flutter.dev/docs/deployment/cd">official doc</a> from the Flutter team gives you step-by-step instructions on setting up Fastlane for continuous delivery of your Flutter app.<strong>Deploy your app with Firebase App Distribution and Fastlane</strong>...alright, you have a working app, now you need to get it out to your beta testers without having to publish it to an app store. Enter <a href="https://firebase.google.com/docs/app-distribution">Firebase App Distribution</a>. Using Fastlane, you can build and deploy your app to Firebase App Distribution <a href="https://blog.codemagic.io/deploying-flutter-app-to-firebase-app-distribution-using-fastlane/">with a single command</a>. ____Flutter Europe Playlist &#127466;&#127482;Couldn't make Flutter Europe and have some time to spare? Presentations from some of the biggest names in the Flutter-verse are now available on Youtube.<a href="https://www.youtube.com/watch?v=BulIREvHBWg">Everything you need to know about Provider</a> by Rémi Rousselet<a href="https://www.youtube.com/watch?v=G30K5wm7j_M">Lessons learned building the Invoice Ninja Flutter app</a> by Hillel Coren<a href="https://www.youtube.com/watch?v=vl0CbG_-Ny8">Testing Flutter Applications</a> by Rafa&#322; &#346;lósarz...full playlist <a href="https://www.youtube.com/channel/UCOoJkGYV00nr3EpZOUeuN1Q">here</a>.____Elsewhere in the Flutterverse...&#129680;<strong>Flutter &#128153; Rust</strong> ...want to call Rust code from your Flutter app, but a bit confused? Check out this <a href="https://github.com/brickpop/flutter-rust-ffi#readme">super-clean Flutter + Rust plugin template</a> that greatly simplifies the process.<strong>A simpler way to use the Flutter Camera plugin</strong>...if you're finding the <a href="https://pub.dev/packages/camera">camera</a> plugin a little intimidating, check out <a hre…