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New post on /r/flutterdev subreddit:

Clarification about Redux
Hi, I need some clarification about the Redux design pattern.Consider a "Settings" page with many setting-related widgets such as toggles, sliders, input fields etc. This page uses a StoreConnector and, consequently, a model and a state that save all the values of the user's settings.When one single setting is changed, is the entire widget tree rebuilt as a result?If so, isn't Redux a terrible pattern for optimisation? Or is there something that Redux/Flutter does during this entire process for avoiding unnecessary rebuilds?If switching a single toggle leads to all other toggles, sliders, input fields, etc to rebuild then what is the point of the Redux design pattern?

November 25, 2019 at 09:00PM by AliYigitBireroglu
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New post on /r/flutterdev subreddit:

Why Flutter's performance is lower than native?
Hi all,I hope it's okay to ask question in here, but i haven't found any restrictions in the "Read this before posting".
Can someone explain to me why Flutter is slower than native Android or IOS? As far as I know Flutter compiles to native executable Code so it should be as fast as native Android, right?​Thanks in advance!

November 25, 2019 at 10:57PM by IlutschiI
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New post on /r/flutterdev subreddit:

Minimal Counter app with Flutter Hooks, ChangeNotifier and Streams
I came up with a minimal app using a ChangeNotifier model that gets transformed into a Stream to be consumed by a custom Hook to update the widget. Thought I'd share.```dart import 'dart:async';import 'package:flutter/foundation.dart'; import 'package:flutter/widgets.dart'; import 'package:flutter_hooks/flutter_hooks.dart';main() => runApp(MyApp());class MyApp extends HookWidget { @override Widget build(context) { AsyncSnapshot<Post> snapshot = useChangeNotifierAsStream(Post()); return GestureDetector( onDoubleTap: () => snapshot.data.count++, child: Center( child: Text( 'Counter: ${snapshot.data.count}', textDirection: TextDirection.ltr, ), ), ); } }AsyncSnapshot<T> useChangeNotifierAsStream<T extends ChangeNotifier>(T model) { final stream = useMemoized(() => changeNotifierToStream(model)); return useStream(stream, initialData: model); }class Post extends ChangeNotifier { int _count = 0; get count => _count; set count(value) { _count = value; notifyListeners(); } }Stream<T> changeNotifierToStream<T extends ChangeNotifier>(T model) { StreamController<T> _controller;void _listener() => _controller.add(model); void start() => model.addListener(_listener); void end() => model.removeListener(_listener);_controller = StreamController<T>( onListen: start, onPause: end, onResume: start, onCancel: end, ); return _controller.stream; } ```

November 26, 2019 at 03:17AM by frank06_
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New post on /r/flutterdev subreddit:

Dynamic Profile Creation w/ Google Sign In
How would I go about implementing a user profile functionality with google sign in. I have the google sign in functionality completed, but when the user logs in, I want the user to complete a profile (phone number, address, etc.) and have that information saved with their uid in cloud firestore. Any direction would be appreciated!

November 26, 2019 at 12:22AM by ro_mo
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New post on Flutter Dev Google group:

Multiple local notification
I use this code for local notification var androidPlatformChannelSpecifics = new AndroidNotificationDetails( 'your other channel id', 'your other channel name', 'your other channel description'); var iOSPlatformChannelSpecifics = new IOSNotificationDetails(); Notificati

November 26, 2019 at 06:02AM by Dilman Omer
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New post on Flutter Dev Google group:

Upload file using AWS S3 return empty string in Flutter
I'm trying to do image upload with dart/flutter with aws s3 bucket using flutter_amazon_s3
New post on Flutter Dev Google group:

How to build books library App with Flutter
Dear all, Please my name is Ernie and am new to Flutter, I will like to know how l can build a book library app like the attached file Any help will be appreciated than you

November 26, 2019 at 08:27AM by Kak Kakra
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New post on /r/flutterdev subreddit:

What is Dart convention for writing Models ?
So coming Java background i would always write instance fields first and then constructor/s.In Dart what I am seeing its other way around, which is confusing sometimes, at first look, but its not always like that.Is there a clear rule to this ? Is it a Dart convention ?

November 26, 2019 at 09:14AM by zvrksam86
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New post on Flutter Dev Google group:

How to show icon ?? from an api ?
i want to get and show an icon from api. how i can do this? anybody.?

November 26, 2019 at 10:42AM by Mohd. Asif
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New post on Flutter Dev Google group:

Get list of url's present in a string
Need help with getting the list of url present in a string

November 26, 2019 at 11:04AM by Burhan U Din Drabu
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New post on Flutter Dev Google group:

GraphQL Usage in Flutter
Hi Do we have the client library for using GraphQL in flutter? Regards Sreekanth K Reddy

November 26, 2019 at 11:27AM by Sreekanth Reddy
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New post on Flutter Dev Google group:

Connectivity
I have created an multi restaurant delivery app. I need to connect the user app and delivery boy app that if some one orders in user app the info should be passed to delivery boy app. How could i connect them using flutter

November 26, 2019 at 11:44AM by Manish Raghavan
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New post on /r/flutterdev subreddit:

Flutter WebView: new flutter_inappbrowser plugin version 2.0.0 released with a lot of new events, options and methods to control WebViews.
https://ift.tt/2Olh1mg

November 26, 2019 at 12:37PM by LorePi
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New post on /r/flutterdev subreddit:

Is it possible to write an iOS/Android plugin using Flutter?
That is, if I wanted to write a plugin for iOS/Android that will plug into Swift/ObjC/Java/Kotlin, is that possible and are there any examples of this?

November 26, 2019 at 02:33PM by ac_version_01
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New post on /r/flutterdev subreddit:

Any advice on firebase cloud messaging?
Hi,I'm about to integrate firebase cloud messaging into my app and was wondering if redditors had any design advice. All the tutorials I have found place the flutter code into the main.dart file or a home screen.dart file. Is there a good design practice for these notification modules in a production app. Would placing them in a services folder and then importing into main work?Thanks,

November 26, 2019 at 02:52PM by pigeon888
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New post on Flutter Dev Google group:

how to debug flutter engine step by step correctly
hi, all I have compiled the flutter engine successfully, and configure it in my xcode example by generated.xcconfig file: FLUTTER_ROOT=/Users/xxx/Desktop/FlutterWork/flutter_github_1.9.1 FLUTTER_APPLICATION_PATH=/Users/xxx/Desktop/FlutterWork/flutter_boost/example FLUTTER_TARGET=lib/main.dart

November 26, 2019 at 04:44PM by Jim Xu
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