Flutter Heroes

New post on /r/flutterdev subreddit: Is Flutter a mature option to build a PWA project yet? Flutter for web was released in the stable channel just some months ago (https://developers.googleblog.com/2021/03/announcing-flutter-2.html).Do you think it’s really a good option to build a PWA project or would you prefer using other framework instead? May 11, 2021 at 09:02AM by filipedelimabrito https://ift.tt/3o9m4cm

New post on Flutter Dev Google group: [Firebase_Messaging] onMessage run multiple async task on iOS Hi guys i want to make an async task in onMessage of Firebase messaging method here what i want to exactly i want to launch Facebook app on specific page when a notification come from Firebase when i click on the notification body i mean that box that appear on top of screen it brings me May 11, 2021 at 08:31AM by Fhima Anoir Khalil https://ift.tt/3uC57JV

New post on /r/flutterdev subreddit: Opinion on backend for a simple flutter app? Hi,I am building a simple app where I do 2 api calls. User enters data, that goes into first api call. Result comes and it goes to second api call. Final response shown to user.That's it.Now the apis I am using have specific instruction that the API Key should not be used in frontend and the calls should be made from backend.I don't have much knowledge about backend so I will have to learn Node.js, express etc all from scratch. Which will take time and my partner wants to build the MVP version sooner.Is there any way I could do this process in an easier way rather then learning Node.js etc from scratch? For account creation and stuff I am going to use firebase. Then only concern is the API calls.Any advice would be appreciated. May 11, 2021 at 05:23AM by flutternoob1000 https://ift.tt/3uCXnaB

New post on /r/flutterdev subreddit: ValidationNotifier, a ValueNotifier that validates a value against a collection of customizable rules. https://pub.dev/packages/validation_notifierUseful when you intend to separate validation logic from your state. PRs are welcome, too. May 11, 2021 at 03:57AM by contrix09 https://ift.tt/2RauHqL

New post on /r/flutterdev subreddit: Flutter Tutorial - Calendar Events App (Johannes Milke) https://www.youtube.com/watch?v=LoDtxRkGDTw May 11, 2021 at 01:55AM by JohannesMilke https://ift.tt/3uC0yz3

New post on Flutter Dev Google group: Error because of firebase and flutter Hi everyone, When I add three packages ( firebase_core: "0.7.0" cloud_firestore: "^0.16.0+1" firebase_auth: "^0.20.1") I got the error which I attach in the below. Also, I checked AndroidX from gradle.properties . Like that: (gradle.properties) org.gradle.jvmargs=-Xmx1536M android.useAndr May 11, 2021 at 01:26AM by Ebrar Teke https://ift.tt/3uHkhgY

New post on /r/flutterdev subreddit: Is Flutter the future of mobile development or will it beat react native? The question which I am asking is that has flutter any future or not should I learn it & practice it to make my client projects or will it beat react-native kindly elaborate it in detail because I want to start my software company!Thanks May 11, 2021 at 12:36AM by GROWwithCreativity https://ift.tt/3uBxYy7

New post on /r/flutterdev subreddit: Venmo And Flutter I want to use Venmo as a payment method in my flutter app... Can anyone help me? I can't find good tutorial May 10, 2021 at 11:43PM by Special_Substance798 https://ift.tt/3bhGnyW

New post on /r/flutterdev subreddit: Dart Experiment using FFI to render realtime waveform from libOpenMPT I'm learning Dart (and soon Flutter) and found that Dart FFI is a beast!I recently wrote an experiment that is a (relatively) lightweight terminal mod player using libOpenMPT. FFI is so fast that it didn't have trouble shuttling the audio buffer data from C to Dart (1K of doubles), allowing for realtime rendering of waveform data.In contrast, the React Native JS <> ObjC Bridge would get crippled by this setup.Next step is to modify the library to be compiled to ARM for mobile & properly bootstrap the package to share on pub.dev. https://www.youtube.com/watch?v=ML__KKRjtSY May 10, 2021 at 10:48PM by djliquidice https://ift.tt/3tFaxCy

New post on /r/flutterdev subreddit: How well does a MBP M1/16GB work with flutter? Hi guys. I‘m sure there are some devs here who use a new MacBook. So I hope someone is able to help.I use both, Mac OS on Mac mini and windows on a regular pc and have more ram than needed (64gb+). I‘m looking for a mobile Option and i might consider getting a MacBook with the next update cycle.How well does it work so far with 16GB ram and the M1 chip? Does the machine slow down with the typical dev setup (vscode, emulator, a ton of chrome/FF tabs, maybe even a nodejs server running,...)Thank you very much! May 10, 2021 at 06:01PM by lechnerio https://ift.tt/2QZN2ah

New post on Flutter Dev Google group: Integration testing with flutter_driver and the version of integration_test in the Flutter SDK. Hello, Can you any advice about if this has been fixed because I'm at a complete stall now with any mobile applications if this bug can't be moved to null safety? From what I've read this is some kind of bug of depreciated code... *All I'm trying to do is * Flutter Build Ipa to be able to May 10, 2021 at 05:26PM by Bridget Kelly O'Sheehan https://ift.tt/3vZM5xt

New post on /r/flutterdev subreddit: Parser tool is a real-time compiler and runtime engine for strongly typed PEG parsers https://github.com/mezoni/parser_toolParser tool contains libraries that allow you to create strongly typed PEG parsers. The tool contains a compiler that compiles a parser in real time and an engine to execute the compiled parsers.AdvantagesStrongly typed parsersSufficiently high performanceAllows you to debug the parser through tracing support with information about the parsing progressExpression notations are available during debuggingAllows you to print out grammarDisvantagesNot as fast parsers as compared to parsers that compile directly into source codeThe debugging process is not so clear and convenientBenchmarksParse 10 times: E:\prj\test_json\bin\data\citm_catalog.json Dart JSON : k: 1.00, 96.88 MB/s, 170.01 ms (8.68%), PEG2 general modified JSON: k: 2.06, 47.06 MB/s, 350.02 ms (17.87%), PEG2 general classic JSON : k: 2.02, 48.02 MB/s, 343.02 ms (17.51%), Tool with prediction JSON : k: 2.64, 36.68 MB/s, 449.03 ms (22.92%), Petitparser JSON : k: 11.52, 8.41 MB/s, 1959.11 ms (100.00%),Parse 10 times: E:\prj\test_json\bin\data\twitter.json Dart JSON : k: 1.00, 60.18 MB/s, 90.00 ms (5.03%), PEG2 general modified JSON: k: 4.07, 14.80 MB/s, 366.02 ms (20.46%), PEG2 general classic JSON : k: 1.61, 37.35 MB/s, 145.01 ms (8.11%), Tool with prediction JSON : k: 2.28, 26.42 MB/s, 205.01 ms (11.46%), Petitparser JSON : k: 19.88, 3.03 MB/s, 1789.10 ms (100.00%),An example of a JSON parser used in performance tests: https://github.com/mezoni/parser_tool/blob/main/example/example.dart May 10, 2021 at 04:26PM by andrew_mezoni https://ift.tt/3tv8Fw1

New post on /r/flutterdev subreddit: dart_ipify: get your public IP directly or get the precise physical location of a given IP address. https://ift.tt/2SAaxH3 May 10, 2021 at 04:58PM by marsNemophilist https://ift.tt/3uEIViq

New post on /r/flutterdev subreddit: HSL Colors Explained: What they are and when to use them in Dart/Flutter https://ift.tt/3y1G4Sr May 10, 2021 at 03:48PM by bizz84 https://ift.tt/33uiTCe

New post on /r/flutterdev subreddit: Flutter App UI | E-Commerce App | EP.10 Cart, Category(Products) Screens | Speed Code https://youtu.be/TrKDGt24GHs May 10, 2021 at 02:55PM by MDKhali https://ift.tt/3o27gfv

New post on /r/flutterdev subreddit: Flutter Tap Weekly Newsletter Week 84 Tutorials, videos, packages, and much more! https://ift.tt/3xWMYsi May 10, 2021 at 02:55PM by vensign https://ift.tt/3hjYM1R

New post on /r/flutterdev subreddit: From Zero to MVP in 3 Months With Flutter https://ift.tt/33xIHxn May 10, 2021 at 01:33PM by blazarious https://ift.tt/33sDKWG

New post on /r/flutterdev subreddit: Google I/O schedule. Your Opinion? I looked at the schedule for Flutter talks @ I/O and frankly, I'm a bit disappointed.Are you looking forward to I/O 2021?Because of Google's policy of no commitment to release dates or feature roadmaps, those Fireside chats and developer chats cannot answer my important questions.At least that full-stack AMA might be interesting in that it has the potential to raise attention for using Dart on the server side.Personally I'm also not interested in beginner or intermediate level talks and would welcome more advanced topics. You "milage" might vary here.Because I closely follow the master branch and I don't think that Google is secretly developing the next big thing, I also don't expect big news from the "What's new in Flutter" talk.We'll probably get a new stable version based on the current master and they might declare Dart 2.13 (which is already superseeded by 2.14 - a victim of silly superstition?) or Dart 2.14 as stable.I'd love to be surprised with a fully featured desktop Look & Feed similar to Material Design for macOS, Windows, or Ubuntu. I'd also love to get a much needed multiple windows mode. Then of course, there's the always present wish for better 1st party plugins. At least, Google continues to invest in Flutter and we all can base our businesses on Flutter's technology for another year ;-) May 10, 2021 at 12:24PM by eibaan https://ift.tt/3o6zdmu

New post on /r/flutterdev subreddit: How to Increment Counter For a Specific List Item In Flutter? https://www.youtube.com/watch?v=F_M5eQWa9A8 May 10, 2021 at 09:25AM by lil_dragplix https://ift.tt/3fa3xIu

New post on /r/flutterdev subreddit: <b>Flutter webrtc multiple peer connection</b> I am trying to make 3 peer video chats using Webrtc in Flutter. A needs to see B and C. B needs to see A and C. C needs to A and B. I also use socket.io for the signaling server. I used 2 peer connections. two peer connection is successful. When I tried to connect the third one and tried to pass offer I got an error.&#8203;<strong>to execute 'createAnswer' on 'RTCPeerConnection': PeerConnection cannot create an answer in a state other than have-remote-offer or have-local-pranswer.</strong>is my approach is bad for multiple peer connection? I also posted in stackoverflow.<a href="https://stackoverflow.com/questions/67465534/multipeer-connection-webrtc-flutter">https://stackoverflow.com/questions/67465534/multipeer-connection-webrtc-flutter</a>No answer.<code>import 'dart:convert';import 'package:flutter/material.dart';import 'package:flutter_webrtc/flutter_webrtc.dart';import 'package:sdp_transform/sdp_transform.dart';import 'package:socket_io_client/socket_io_client.dart' as IO;class Home extends StatefulWidget {final String title;const Home({Key key, this.title}) : super(key: key);<a href="/u/override">u/override</a>_HomeState createState() => _HomeState();}class _HomeState extends State<Home> {bool _offer = false;bool firstTimeOffer = true;bool firstTimeRemoteDescription = true;bool firstTimeAnswer = true;bool firstTimeCandidate = true;RTCPeerConnection _peerConnection;RTCPeerConnection _peerConnection2;MediaStream _localStream;final _localVideoRenderer = new RTCVideoRenderer();final _remoteVideoRenderer = new RTCVideoRenderer();final _remoteVideoRenderer2 = RTCVideoRenderer();IO.Socket socket;var pcConfig = {};var candidates = [];final txtController = TextEditingController();<a href="/u/overridevoid">u/overridevoid</a> dispose() {txtController.dispose();_localVideoRenderer.dispose();super.dispose();  }<a href="/u/overridevoid">u/overridevoid</a> initState() {initRenderers();_createPeerConnection().then((pc) {_peerConnection = pc;    });_createPeerConnection2().then((pc) {_peerConnection2 = pc;    });_getUserMedia();connectToServer();super.initState();  }void connectToServer() {// connectToServer();socket = IO.io('http://localhost:3000', <String, dynamic>{'transports': ['websocket'],'autoConnect': false,    });socket.connect();socket.onDisconnect((_) => print("disconnected"));socket.on('connection-success', (data) => print(data));socket.on('offerOrAnswer', (sdp) async {this.txtController.text = sdp;    });socket.on('candidate', (candidate) {// print('From Peer.....');// print(json.encode(candidate));this.candidates = [...this.candidates, candidate];    });  }_getUserMedia() async {final Map<String, dynamic> mediaConstraints = {'audio': false,'video': {'facingMode': 'user'}    };MediaStream stream =await navigator.mediaDevices.getUserMedia(mediaConstraints);_localVideoRenderer.srcObject = stream;//  _localVideoRenderer.mirror = true;return stream;  }initRenderers() async {await _localVideoRenderer.initialize();await _remoteVideoRenderer.initialize();  }_createPeerConnection() async {Map<String, dynamic> configuration = {"iceServers": [        {"url": "stun:stun.l.google.com:19302"},      ]    };final Map<String, dynamic> offerSdpConstraints = {"mandatory": {"OfferToReceiveAudio": true,"OfferToReceiveVideo": true,      },"optional": [],    };_localStream = await _getUserMedia();RTCPeerConnection pc =await createPeerConnection(configuration, offerSdpConstraints);//  if (pc != null) print(pc);pc.addStream(_localStream);// triggered when a new candidate is returnedpc.onIceCandidate = (e) {//send the candidates to the remote peer// see addCandidate below to be triggeredif (e.candidate != null) {var candidate = {'candidate': e.candidate.toString(),'sdpMid': e.sdpMid.toString(),'sdpMlineIndex': e.sdpMlineIndex        };print(e.candidate);this.sendToPeer('candidate', candidate);      }    };pc.onIceConnectionState = (e) {print(e);    };pc.onAddStrea…