New post on /r/flutterdev subreddit:

Retrofit for api
Is it better to use retrofit and di in flutter for easy implementation in api call?

December 07, 2019 at 01:56AM by Jecky633
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New post on /r/flutterdev subreddit:

Pad: quick padding
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December 07, 2019 at 02:42AM by synw_
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New post on /r/flutterdev subreddit:

Calculator App made with Flutter
Hey guys!I recently started learning flutter and just made my first calculator from it. Would love to get any feedback on the code behind it. I'm sure there's a much more efficient way of what I made so I'm open to criticism. The link to the code:https://github.com/createdbymitch/flatcalculatorfollow me on instagram @ createdbymitch I'm doing a 100 day coding challenge!
https://www.instagram.com/createdbymitch/

December 07, 2019 at 04:30AM by Heisenlife
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New post on /r/flutterdev subreddit:

What are some use cases of auth sign in with Google/Facebook etc without Firebase/server side auth?
This Flutter tutorial video https://www.youtube.com/watch?v=8o-DJDi2bmQ explains how to use Google Sign In without Firebase. Basically the app just uses Google Sign In SDK to retrieve the access token and user info. There is no server side auth such as Firebase involved. One scenario where you implement auth in this way is when your app is a client of the provider's service, for example writing a Google Drive client or Facebook client or Reddit client. Are there some other use cases or types of mobile app that one could just implement auth this way without involving server side auth?

December 07, 2019 at 06:51AM by etca2z
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New post on Flutter Dev Google group:

Cannot get rid of the "BOTTOM OVERFLOW BY 24 PIXELS"
Can anyone please help? I have tried everything I've searched on stackoverflow but nothing helps. This is the actual problem. [image: Screenshot_2019_1207_193827.png]

New post on /r/flutterdev subreddit:

Hover Effects in Flutter Web | Flutter Extensions
https://youtu.be/VABcKZLpvyg

December 07, 2019 at 12:38PM by Filledstacks
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New post on /r/flutterdev subreddit:

<b>Flutter Discovery #20</b>
&#8203;<a href="https://medium.com/flutter-community/quick-tip-firestore-multiple-operations-in-flutter-23ddb08d1581">Quick Tip: Firestore multiple operations in Flutter</a>There will be times when the business logic of your app need multiple database operations to have atomicity. An example will be decrementing a store's stock of a product and simultaneously assign the sold product to a customer. Firestore supports <a href="https://firebase.google.com/docs/firestore/manage-data/transactions#transactions">transactions</a> and <a href="https://firebase.google.com/docs/firestore/manage-data/transactions#batched-writes">batched writes</a>(when all the operations are writes) for situations that demand operation atomicity. These provide a way to maintain database integrity when dealing with multiple operations.<a href="https://twitter.com/timsneath/status/1201320559310598144">Advent of Code 2019</a>The Advent of Code are programming puzzles that are revealed each day till the 25th of December. This is the fifth year of this event and previous years are <a href="https://adventofcode.com/2019/events">archived</a> and still available. They can be solved using any programming language including Dart. The difficulty varies from event to event but they are still a great challenge and could possibly improve code quality<a href="https://twitter.com/dart_lang/status/1202324263753015296">http://DartPad.dev gets an upgrade!</a><a href="https://dartpad.dev/">DartPad.dev</a> is an online compiler for Dart that is very useful for quickly testing and prototyping code. The <a href="https://dart.dev/codelabs">Codelabs for Dart</a> uses embedded DartPads so that users can follow along. The Dartpads can now run flutter apps so now it is possible to test the Flutter SDK straight from the browser. There have been already amazing apps written and shared through Dartpad such as a <a href="https://twitter.com/rodydavis/status/1202412333538140160">piano app</a> and <a href="https://twitter.com/divyanshub024/status/1202828494490591232">a tic tac toe game</a>. There have been some issues reported but any issues found can be <a href="https://twitter.com/divyanshub024/status/1202828494490591232">submitted</a> for triage.<a href="https://www.youtube.com/watch?v=fneC7t4R_B0">Creating custom explicit animations with AnimatedBuilder & AnimatedWidget - Flutter in Focus</a>The newest video in the latest Flutter in Focus series shows when to use <a href="https://api.flutter.dev/flutter/widgets/AnimatedBuilder-class.html">AnimatedBuilder</a> and <a href="https://api.flutter.dev/flutter/widgets/AnimatedWidget-class.html">AnimatedWidget</a> to create your own Explicit Animations. AnimatedWidget changes whenever the <a href="https://api.flutter.dev/flutter/widgets/AnimatedWidget/listenable.html">listenable</a> property, usually an AnimationController change which reduces a lot of boilerplate code. An AnimatedBuilder is a more inline version of AnimatedWidget. It takes a builder function that returns a Widget that gets rebuilt when the <code>listenable</code> property changes. The video recommends making an <code>AnimatedWidget</code> when the Widget is big enough to have its own responsibility and <code>AnimatedBuilder</code> when the parent widget is simple enough or the Widget being animated is not complex enough itself<a href="https://medium.com/flutterpub/flutter-alert-dialog-to-custom-dialog-966195157da8">Flutter Alert Dialog to Custom Dialog</a>Flutter has multiple ways to create dialogs for situations where the user needs to be alerted. They are also highly customizable beyond what the default offers. This article goes over the various types of dialogs and how to customize them to create the perfect dialog<a href="https://www.youtube.com/watch?v=kVEguaQWGAY">ToggleButtons</a>The ToggleButtons offers a horizontal set of toggle buttons perfect for situations with buttons that can be grouped logically.…

New post on /r/flutterdev subreddit:

Flutter UI videos and what content you’d like to see on YouTube
Hi guys, I’ve stumbled across a post in this subreddit concerning YouTube creators and the amount of UI videos. Here is the postI’ve wondered what type of content you guys like to see on Youtube?(expect the ones mentioned in the post) What do you guys think about speed code videos? What do you think about those ‘App from scratch’ videos that aren’t really meant to be tutorials?Because I really enjoy watching those types of videos😅Would really appreciate everything you guys have to say on the topic.Thanks guys

December 07, 2019 at 01:22PM by levelupdigital
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New post on /r/flutterdev subreddit:

Flutter Web + Firebase Hosting
https://ift.tt/36ejuYk

December 07, 2019 at 07:51PM by UrAvgDeveloper
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New post on /r/flutterdev subreddit:

Interacting with a REST API | HTTP Methods, Status Codes... | Consuming a REST API in Flutter #3
https://www.youtube.com/watch?v=ZMNp9Ev6cl0

December 07, 2019 at 09:59PM by Elixane
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New post on Flutter Dev Google group:

on shake...do this
Hey all! does anyone have any experience with an On Shake event? i.e, when the phone shakes, perform this action. Would be useful to know if anyone has done this, there isnt much documentation online. thanks!

December 08, 2019 at 01:25AM by Matthew Goldring
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New post on Flutter Dev Google group:

Re: New breaking change policy and invitation to contribute tests
In principle anything is fair game, but during the review process we may call certain things out as poor practice and suggest different approaches. Currently only things that can be reliably tested from Cirrus are welcome. That said, there have been experiments in driving there Firebase Test Lab

December 08, 2019 at 07:44AM by Ian Hickson
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New post on /r/flutterdev subreddit:

Why StatelessWidget AND StatefulWidget exists, why not just Widget?
As an experienced mobile developer, I would like to understand why did the Flutter team make this kind of division?Wouldn't it be simpler if all widgets were stateful, without the additional state class - all state methods within the widget class (AFAIR similar to react native)?One less thing to learn, understand, think about, post on Reddit about.If you want you call setState, if you don't than you don't, or you use provider. Is there any performance penalty when using stateful widget over stateless, without using any stateful widget's features?Is there any reason why Checkbox is a stateless widget, and TextField a stateful? And I believe inside the source of checkbox there must be a stateful widget responsible for checkmark animation (on mobile, can't check source at this moment).One can always create a stateless widget and then wrap it in stateful one.Eventually the setState method is called from within widget (it's state), so the other classes shouldn't even careLooking forward to having interesting discussion fellow flutterists.

December 08, 2019 at 07:51AM by chrisrutkowski
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New post on Flutter Dev Google group:

Dynaally change content of a page
Hi Geeks, I am creating an app in which I need to change whole page text in different languages,from hamburger at appbar for this I created variable and tried to change on selection of different language but the issue is my page has lot's of variable for that I want to put those variables on

December 08, 2019 at 03:57PM by Sangeeta Kumari
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New post on /r/flutterdev subreddit:

Are we expecting any major releases on the 11th? Flutter interact.
Any chance that we'll get a production ready flutter web? What do you guys think?

December 08, 2019 at 03:18PM by flutterisnice
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New post on /r/flutterdev subreddit:

Help with Wrap Widget - Creating similar like Wrap
Inside a container with some fixed height, I want to display some icons repeatedly. The icons/images length is coming from external server.icons/images should be fixed with some maximum width and height. The icons/images are must be reduced to smaller size to fit in the container.So i tried Wrap widget. Obviously it works for some limit and then it overflows the images/icons without showing completely.So i made calculations. Total space inside the container by using LayoutBuilder. But it is not working all the time as expected. Few times it shows images/icons correctly. But someother times it does not.Sample ImageContainer with some fixed width and height. How do i fill images/icons either using Wrap or other widgets. But we have to show all the images inside the container by reducing the size at least.I tried Column and Row combination with some calculation. Again, sometimes the last row is not displayed.Give me your valuable suggestions to achieve this.

December 08, 2019 at 03:15PM by mahesh2150
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New post on /r/flutterdev subreddit:

How do i convert a String to a List<Map<String,String>>
I have a list which contains several keys and values, which are then mapped into a DataTable to be displayed.

 List<Map<String, String>> listOfColumns = [ {"Name": "John", "Number": "1", "State": " "}, {"Name": "Brad", "Number": "2", "State": " "}, {"Name": "Ryan", "Number": "3", "State": " "}, {"Name": "Grant", "Number": "4", "State": " "}, ]; 

Now, i want the data in the data table to be saved. So I simply used the File IO system i created an asynchronous function called _save() and _read(), in _save() i converted listOfColumns to a string.​

_read() async { try { final directory = await getExternalStorageDirectory(); final file = File('${directory.path}/my_file.txt'); text = await file.readAsString(); } catch (e) { print("Couldn't read file"); } } _save() async { final directory = await getExternalStorageDirectory(); final file = File('${directory.path}/my_file.txt'); final List<Map<String, String>> data = listOfColumns; await file.writeAsString(data.toString()); print('saved'); } 

Now when it comes to reading the data from the file, here's the thing - How do i actually turn the variable text back into List<Map<String,String>> ? Im totally lost on how to achieve this. Any help is highly appreciated. Thanks.

December 08, 2019 at 05:18PM by KarmaRekts
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New post on /r/flutterdev subreddit:

Scrollytell Flutter
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December 08, 2019 at 06:59PM by aagarwal1012
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New post on /r/flutterdev subreddit:

App example to take surveys of talks using emoticons 😀
https://ift.tt/38mr199

December 08, 2019 at 09:04PM by imtoori
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New post on /r/flutterdev subreddit:

Flutter Clock Contest - Building a Prototype Clock (Tensor Programming Live Coding)
https://www.youtube.com/watch?v=HYrbFTZ88nY

December 08, 2019 at 10:41PM by Elixane
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