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Build Your Own Chat experience using Dart and Flutter.

Official Flutter SDK for Stream Chat

 

The official Flutter components for Stream Chat, a service for building chat applications.

Quick Links

Changelog

Check out the changelog on pub.dev to see the latest changes in the package.

Flutter Chat Tutorial

The best place to start is the Flutter Chat Tutorial. It teaches you how to use this SDK and also shows how to make frequently required changes.

Example App

This repo includes a fully functional example app with setup instructions. The example is available under the example folder.

Add dependency

Add this to your package's pubspec.yaml file, use the latest versionPub

dependencies:
 stream_chat_flutter: ^latest_version

You should then run flutter packages get

Android

All set ✅

iOS

The library uses flutter file picker plugin to pick files from the os. Follow this wiki to fulfill iOS requirements.

We also use video_player to reproduce videos. Follow this guide to fulfill the requirements.

To pick images from the camera, we use the image_picker plugin. Follow these instructions to check the requirements.

Troubleshooting

It may happen that you have some problems building the app. If it seems related to the flutter file picker plugin make sure to check this page

Docs

This package provides UI components required for integrating Stream Chat into your application. Alternatively, you may use the core package stream_chat_flutter_core which allows more customisation and provides business logic but no UI components. If you require the maximum amount of control over the API, please use the low level client package: stream_chat.

UI Components

These are the available Widgets that you can use to build your application UI. Every widget uses the StreamChat or StreamChannel widgets to manage the state and communicate with Stream services.

Customizing styles

The Flutter SDK comes with a fully designed set of widgets that you can customize to fit with your application style and typography. Changing the theme of Chat widgets works in a very similar way that MaterialApp and Theme do.

Out of the box, all chat widgets use their default styling, and there are two ways to change the styling:

  1. Initialize the StreamChatTheme from your existing MaterialApp style
  class MyApp extends StatelessWidget {
    final StreamChatClient client;

    MyApp(this.client);

    @override
    Widget build(BuildContext context) {
      final theme = ThemeData(
        primarySwatch: Colors.green,
      );

      return MaterialApp(
        theme: theme,
        builder: (context, child) => StreamChat(
         child: child,
         client: client,
         streamChatThemeData: StreamChatThemeData.fromTheme(theme),
        ),
        home: ChannelListPage(),
        );
    }
  }
  1. Construct a custom theme and provide all the customizations needed
  class MyApp extends StatelessWidget {
    final StreamChatClient client;

    MyApp(this.client);

    @override
    Widget build(BuildContext context) {
      final theme = ThemeData(
        primarySwatch: Colors.green,
      );

      return MaterialApp(
        theme: theme,
        builder: (context, child) => StreamChat(
         child: child,
         client: client,
         streamChatThemeData: StreamChatThemeData.fromTheme(theme).copyWith(
            ownMessageTheme: MessageTheme(
            messageBackgroundColor: Colors.black,
            messageText: TextStyle(
              color: Colors.white,
            ),
            avatarTheme: AvatarTheme(
              borderRadius: BorderRadius.circular(8),
            ),
            ),
         ),
        ),
        home: ChannelListPage(),
        );
    }
  }

Offline storage

To add data persistance you can extend the class ChatPersistenceClient and pass an instance to the StreamChatClient.

class CustomChatPersistentClient extends ChatPersistenceClient {
...
}

final client = StreamChatClient(
  apiKey ?? kDefaultStreamApiKey,
  logLevel: Level.INFO,
)..chatPersistenceClient = CustomChatPersistentClient();

We provide an official persistent client in the (stream_chat_persistence)[https://pub.dev/packages/stream_chat_persistence] package.

import 'package:stream_chat_persistence/stream_chat_persistence.dart';

final chatPersistentClient = StreamChatPersistenceClient(
  logLevel: Level.INFO,
  connectionMode: ConnectionMode.background,
);

final client = StreamChatClient(
  apiKey ?? kDefaultStreamApiKey,
  logLevel: Level.INFO,
)..chatPersistenceClient = chatPersistentClient;

Contributing

We welcome code changes that improve this library or fix a problem, please make sure to follow all best practices and add tests if applicable before submitting a Pull Request on Github. We are pleased to merge your code into the official repository. Make sure to sign our Contributor License Agreement (CLA) first. See our license file for more details.

Use this package as a library

Depend on it

Run this command:

With Flutter:

 $ flutter pub add stream_chat_flutter

This will add a line like this to your package's pubspec.yaml (and run an implicit dart pub get):


dependencies:
  stream_chat_flutter: ^2.2.0

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

Import it

Now in your Dart code, you can use:

import 'package:stream_chat_flutter/stream_chat_flutter.dart';

example/lib/main.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
import 'package:stream_chat_localizations/stream_chat_localizations.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();

  /// Create a new instance of [StreamChatClient] passing the apikey obtained
  /// from your project dashboard.
  final client = StreamChatClient(
    's2dxdhpxd94g',
    logLevel: Level.INFO,
  );

  /// Set the current user and connect the websocket. In a production
  /// scenario, this should be done using a backend to generate a user token
  /// using our server SDK.
  ///
  /// Please see the following for more information:
  /// https://getstream.io/chat/docs/ios_user_setup_and_tokens/
  await client.connectUser(
    User(id: 'super-band-9'),
    '''eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoic3VwZXItYmFuZC05In0.0L6lGoeLwkz0aZRUcpZKsvaXtNEDHBcezVTZ0oPq40A''',
  );

  final channel = client.channel('messaging', id: 'godevs');

  await channel.watch();

  runApp(
    MyApp(
      client: client,
      channel: channel,
    ),
  );
}

/// Example application using Stream Chat Flutter widgets.
///
/// Stream Chat Flutter is a set of Flutter widgets which provide full chat
/// functionalities for building Flutter applications using Stream. If you'd
/// prefer using minimal wrapper widgets for your app, please see our other
/// package, `stream_chat_flutter_core`.
class MyApp extends StatelessWidget {
  /// Example using Stream's Flutter package.
  ///
  /// If you'd prefer using minimal wrapper widgets for your app, please see
  /// our other package, `stream_chat_flutter_core`.
  const MyApp({
    Key? key,
    required this.client,
    required this.channel,
  }) : super(key: key);

  /// Instance of Stream Client.
  ///
  /// Stream's [StreamChatClient] can be used to connect to our servers and
  /// set the default user for the application. Performing these actions
  /// trigger a websocket connection allowing for real-time updates.
  final StreamChatClient client;

  /// Instance of the Channel
  final Channel channel;

  @override
  Widget build(BuildContext context) => MaterialApp(
        theme: ThemeData.light(),
        darkTheme: ThemeData.dark(),
        supportedLocales: const [
          Locale('en'),
          Locale('hi'),
          Locale('fr'),
          Locale('it'),
          Locale('es'),
        ],
        localizationsDelegates: GlobalStreamChatLocalizations.delegates,
        builder: (context, widget) => StreamChat(
          client: client,
          child: widget,
        ),
        home: StreamChannel(
          channel: channel,
          child: const ChannelPage(),
        ),
      );
}

/// A list of messages sent in the current channel.
///
/// This is implemented using [MessageListView], a widget that provides query
/// functionalities fetching the messages from the api and showing them in a
/// listView.
class ChannelPage extends StatelessWidget {
  /// Creates the page that shows the list of messages
  const ChannelPage({
    Key? key,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) => Scaffold(
        appBar: const ChannelHeader(),
        body: Column(
          children: const <Widget>[
            Expanded(
              child: MessageListView(),
            ),
            MessageInput(attachmentLimit: 3),
          ],
        ),
      );
}

Download Details:
 

Author: GetStream

Download The Source Code : https://github.com/GetStream/stream-chat-flutter/archive/refs/heads/develop.zip 

GITHUB: https://github.com/GetStream/stream-chat-flutter 

What is GEEK

Buddha Community

Build Your Own Chat experience using Dart and Flutter.

Google's Flutter 1.20 stable announced with new features - Navoki

Flutter Google cross-platform UI framework has released a new version 1.20 stable.

Flutter is Google’s UI framework to make apps for Android, iOS, Web, Windows, Mac, Linux, and Fuchsia OS. Since the last 2 years, the flutter Framework has already achieved popularity among mobile developers to develop Android and iOS apps. In the last few releases, Flutter also added the support of making web applications and desktop applications.

Last month they introduced the support of the Linux desktop app that can be distributed through Canonical Snap Store(Snapcraft), this enables the developers to publish there Linux desktop app for their users and publish on Snap Store.  If you want to learn how to Publish Flutter Desktop app in Snap Store that here is the tutorial.

Flutter 1.20 Framework is built on Google’s made Dart programming language that is a cross-platform language providing native performance, new UI widgets, and other more features for the developer usage.

Here are the few key points of this release:

Performance improvements for Flutter and Dart

In this release, they have got multiple performance improvements in the Dart language itself. A new improvement is to reduce the app size in the release versions of the app. Another performance improvement is to reduce junk in the display of app animation by using the warm-up phase.

sksl_warm-up

If your app is junk information during the first run then the Skia Shading Language shader provides for pre-compilation as part of your app’s build. This can speed it up by more than 2x.

Added a better support of mouse cursors for web and desktop flutter app,. Now many widgets will show cursor on top of them or you can specify the type of supported cursor you want.

Autofill for mobile text fields

Autofill was already supported in native applications now its been added to the Flutter SDK. Now prefilled information stored by your OS can be used for autofill in the application. This feature will be available soon on the flutter web.

flutter_autofill

A new widget for interaction

InteractiveViewer is a new widget design for common interactions in your app like pan, zoom drag and drop for resizing the widget. Informations on this you can check more on this API documentation where you can try this widget on the DartPad. In this release, drag-drop has more features added like you can know precisely where the drop happened and get the position.

Updated Material Slider, RangeSlider, TimePicker, and DatePicker

In this new release, there are many pre-existing widgets that were updated to match the latest material guidelines, these updates include better interaction with Slider and RangeSliderDatePicker with support for date range and time picker with the new style.

flutter_DatePicker

New pubspec.yaml format

Other than these widget updates there is some update within the project also like in pubspec.yaml file format. If you are a flutter plugin publisher then your old pubspec.yaml  is no longer supported to publish a plugin as the older format does not specify for which platform plugin you are making. All existing plugin will continue to work with flutter apps but you should make a plugin update as soon as possible.

Preview of embedded Dart DevTools in Visual Studio Code

Visual Studio code flutter extension got an update in this release. You get a preview of new features where you can analyze that Dev tools in your coding workspace. Enable this feature in your vs code by _dart.previewEmbeddedDevTools_setting. Dart DevTools menu you can choose your favorite page embed on your code workspace.

Network tracking

The updated the Dev tools comes with the network page that enables network profiling. You can track the timings and other information like status and content type of your** network calls** within your app. You can also monitor gRPC traffic.

Generate type-safe platform channels for platform interop

Pigeon is a command-line tool that will generate types of safe platform channels without adding additional dependencies. With this instead of manually matching method strings on platform channel and serializing arguments, you can invoke native class and pass nonprimitive data objects by directly calling the Dartmethod.

There is still a long list of updates in the new version of Flutter 1.2 that we cannot cover in this blog. You can get more details you can visit the official site to know more. Also, you can subscribe to the Navoki newsletter to get updates on these features and upcoming new updates and lessons. In upcoming new versions, we might see more new features and improvements.

You can get more free Flutter tutorials you can follow these courses:

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Terry  Tremblay

Terry Tremblay

1598396940

What is Flutter and why you should learn it?

Flutter is an open-source UI toolkit for mobile developers, so they can use it to build native-looking** Android and iOS** applications from the same code base for both platforms. Flutter is also working to make Flutter apps for Web, PWA (progressive Web-App) and Desktop platform (Windows,macOS,Linux).

flutter-mobile-desktop-web-embedded_min

Flutter was officially released in December 2018. Since then, it has gone a much stronger flutter community.

There has been much increase in flutter developers, flutter packages, youtube tutorials, blogs, flutter examples apps, official and private events, and more. Flutter is now on top software repos based and trending on GitHub.

Flutter meaning?

What is Flutter? this question comes to many new developer’s mind.

humming_bird_dart_flutter

Flutter means flying wings quickly, and lightly but obviously, this doesn’t apply in our SDK.

So Flutter was one of the companies that were acquired by **Google **for around $40 million. That company was based on providing gesture detection and recognition from a standard webcam. But later when the Flutter was going to release in alpha version for developer it’s name was Sky, but since Google already owned Flutter name, so they rename it to Flutter.

Where Flutter is used?

Flutter is used in many startup companies nowadays, and even some MNCs are also adopting Flutter as a mobile development framework. Many top famous companies are using their apps in Flutter. Some of them here are

Dream11

Dream11

NuBank

NuBank

Reflectly app

Reflectly app

Abbey Road Studios

Abbey Road Studios

and many more other apps. Mobile development companies also adopted Flutter as a service for their clients. Even I was one of them who developed flutter apps as a freelancer and later as an IT company for mobile apps.

Flutter as a service

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Adobe XD plugin for Flutter with CodePen Tutorial

Recently Adobe XD releases a new version of the plugin that you can use to export designs directly into flutter widgets or screens. Yes, you read it right, now you can make and export your favorite design in Adobe XD and export all the design in the widget form or as a full-screen design, this can save you a lot of time required in designing.

What we will do?
I will make a simple design of a dialogue box with a card design with text over it as shown below. After you complete this exercise you can experiment with the UI. You can make your own components or import UI kits available with the Adobe XD.

#developers #flutter #adobe xd design export to flutter #adobe xd flutter code #adobe xd flutter code generator - plugin #adobe xd flutter plugin #adobe xd flutter plugin tutorial #adobe xd plugins #adobe xd to flutter #adobe xd tutorial #codepen for flutter.

6 Things About HTTP Request in Dart For Beginners

Introduction

If you are here and a beginner, that means you want to learn everything about making an API request using Dart in Flutter, then you are in the right place for the HTTP tutorial. So without wasting any time, let’s start with this flutter tutorial. We will cover the essential topics required to work with the HTTP request in Dart.

What is Rest API in Dart ?

rest api flow

Rest APIs are a way to fetch data from the internet in flutter or communicate the server from the app and get some essential information from your server to the app. This information can be regarding your app’s data, user’s data, or any data you want to share globally from your app to all of your users.

This HTTP request fetches in a unique JSON format, and then the information is fetched from the JSON and put in the UI of the app.

Every programming language has a way of some internet connectivity i.e, use this rest API developed on the server and fetch data from the internet. To use this request feature, we have to add HTTP package in flutter, add this flutter package add in your project to use the http feature. Add this HTTP package to your pubspec.yaml, and run a command in terminal :

flutter packages get

#dart #flutter #async await #async function #cancel http api request in flutter #fetch data from the internet #flutter cancel future #flutter get request example #flutter post request example #future of flutter #http tutorial

Why Use WordPress? What Can You Do With WordPress?

Can you use WordPress for anything other than blogging? To your surprise, yes. WordPress is more than just a blogging tool, and it has helped thousands of websites and web applications to thrive. The use of WordPress powers around 40% of online projects, and today in our blog, we would visit some amazing uses of WordPress other than blogging.
What Is The Use Of WordPress?

WordPress is the most popular website platform in the world. It is the first choice of businesses that want to set a feature-rich and dynamic Content Management System. So, if you ask what WordPress is used for, the answer is – everything. It is a super-flexible, feature-rich and secure platform that offers everything to build unique websites and applications. Let’s start knowing them:

1. Multiple Websites Under A Single Installation
WordPress Multisite allows you to develop multiple sites from a single WordPress installation. You can download WordPress and start building websites you want to launch under a single server. Literally speaking, you can handle hundreds of sites from one single dashboard, which now needs applause.
It is a highly efficient platform that allows you to easily run several websites under the same login credentials. One of the best things about WordPress is the themes it has to offer. You can simply download them and plugin for various sites and save space on sites without losing their speed.

2. WordPress Social Network
WordPress can be used for high-end projects such as Social Media Network. If you don’t have the money and patience to hire a coder and invest months in building a feature-rich social media site, go for WordPress. It is one of the most amazing uses of WordPress. Its stunning CMS is unbeatable. And you can build sites as good as Facebook or Reddit etc. It can just make the process a lot easier.
To set up a social media network, you would have to download a WordPress Plugin called BuddyPress. It would allow you to connect a community page with ease and would provide all the necessary features of a community or social media. It has direct messaging, activity stream, user groups, extended profiles, and so much more. You just have to download and configure it.
If BuddyPress doesn’t meet all your needs, don’t give up on your dreams. You can try out WP Symposium or PeepSo. There are also several themes you can use to build a social network.

3. Create A Forum For Your Brand’s Community
Communities are very important for your business. They help you stay in constant connection with your users and consumers. And allow you to turn them into a loyal customer base. Meanwhile, there are many good technologies that can be used for building a community page – the good old WordPress is still the best.
It is the best community development technology. If you want to build your online community, you need to consider all the amazing features you get with WordPress. Plugins such as BB Press is an open-source, template-driven PHP/ MySQL forum software. It is very simple and doesn’t hamper the experience of the website.
Other tools such as wpFoRo and Asgaros Forum are equally good for creating a community blog. They are lightweight tools that are easy to manage and integrate with your WordPress site easily. However, there is only one tiny problem; you need to have some technical knowledge to build a WordPress Community blog page.

4. Shortcodes
Since we gave you a problem in the previous section, we would also give you a perfect solution for it. You might not know to code, but you have shortcodes. Shortcodes help you execute functions without having to code. It is an easy way to build an amazing website, add new features, customize plugins easily. They are short lines of code, and rather than memorizing multiple lines; you can have zero technical knowledge and start building a feature-rich website or application.
There are also plugins like Shortcoder, Shortcodes Ultimate, and the Basics available on WordPress that can be used, and you would not even have to remember the shortcodes.

5. Build Online Stores
If you still think about why to use WordPress, use it to build an online store. You can start selling your goods online and start selling. It is an affordable technology that helps you build a feature-rich eCommerce store with WordPress.
WooCommerce is an extension of WordPress and is one of the most used eCommerce solutions. WooCommerce holds a 28% share of the global market and is one of the best ways to set up an online store. It allows you to build user-friendly and professional online stores and has thousands of free and paid extensions. Moreover as an open-source platform, and you don’t have to pay for the license.
Apart from WooCommerce, there are Easy Digital Downloads, iThemes Exchange, Shopify eCommerce plugin, and so much more available.

6. Security Features
WordPress takes security very seriously. It offers tons of external solutions that help you in safeguarding your WordPress site. While there is no way to ensure 100% security, it provides regular updates with security patches and provides several plugins to help with backups, two-factor authorization, and more.
By choosing hosting providers like WP Engine, you can improve the security of the website. It helps in threat detection, manage patching and updates, and internal security audits for the customers, and so much more.

Read More

#use of wordpress #use wordpress for business website #use wordpress for website #what is use of wordpress #why use wordpress #why use wordpress to build a website