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Docs Overview/
Chat/
UIKit/
Flutter/
Getting Started/

Getting Started

Flutter Chat UIKit is designed to provide developers with a comprehensive set of tools to create feature-rich chat applications with ease.
It is built with a modular approach, allowing you to pick and choose the components you need while keeping your application lightweight and efficient.
The UIKit includes a wide range of capabilities, such as Conversation list, Message handling, Contact lists, User and Group Profiles, Search functionality, and more.


Features

1. Personalized Appearance : With built-in Dark and Light modes, the UIKit offers a variety of theme and appearance customization options to meet your business needs.
2. Multi-Platform Compatibility : The adaptable single codebase ensures compatibility across various platforms, including Mobile devices (iOS/Android), Tablet (iPad and Android tablets), Web browsers, and Desktop environments (Windows/macOS).
3. Localization Support : Developed with native English and additional language options, including Arabic, Japanese, Korean, Simplified Chinese, and Traditional Chinese. The internationalization features ensure a localized interface language and support custom and supplementary language , with Arabic support for RTL UI.
4. Enhanced Performance : The UIKit delivers improved message list performance , memory usage , and precise message positioning capabilities, catering to scenarios with large message volumes and navigation to older messages.
5. Advanced Features : Boasting numerous advanced capabilities, the UIKit includes continuous voice message playback, enhanced multimedia and file message experiences, and intuitive left-right swiping for multimedia message previews.
6. Refined User Experience : Detail optimizations such as rich animations , haptic feedback , and a polished interface contribute to an improved user experience. New features like grid-style avatars, redesigned forwarding panels, group member selectors, and revamped long-press message menus further enrich the experience.
7. Modular Design : Components are organized into modular packages, allowing for selective importing and reducing unnecessary bloat. Each package supports built-in navigation transitions , streamlining development and integration by automatically handling transitions, such as between Conversation and Message.
8. Developer-Friendly Approach : A more unified, standardized component parameter design, clearer code naming conventions, and detailed comments, combined with the flexibility to choose global or instance-level configuration management, make development easier and more efficient.

Getting Started

Requirements

Flutter version: 3.19 or above
Dart version: 3.0 or above

Setting Up Application in the Console

Step1：Create an Account

Visit the Console of trtc.io and create an account by following the prompts.

Step2：Start a Free Trial

Create an application on the homepage and start your free trial.


Step3：Generate Test Users

Create two users (test accounts) on Account Management. Following by use the UserSig Tools to create the corresponding UserSigs for them, note down the UserSigs for later use.


Step4：Retrieve Your SDKAppID

Go to Applications, select your newly created application, and navigate to the corresponding Application Overview to find your SDKAppID.

At this point, the Console setup is complete. Make sure to note down the SDKAppID and the two sets of UserID and UserSig.

Coding

Note：
The guide provide a Simplified Overview of integrating with Flutter Chat UIKit only.
For a detailed integration process, please refer to this guide: Detailed Integration Guide.
To begin, it's best to have a Flutter project ready or create a new one to fully experience this tutorial. We recommend following the steps to create a new Flutter project.
Furthermore, the upcoming steps involve client-side project and code operations. To enhance your understanding, you can refer to the source code of this simplified integration project showcased later, available on GitHub repo. Note: this source code repo is only for showcasing the simplified integration purpose, for the following tutorial. If you're interested in exploring a fully-fledged app with an extensive range of features, advanced capabilities, and customization options, please check out This Repo.

Step 1. Import the Packages

To get started, import the base package, tencent_cloud_chat.
flutter pub add tencent_cloud_chat
Next, import the UI component packages that suit your needs:
flutter pub add tencent_cloud_chat_message
flutter pub add tencent_cloud_chat_conversation
flutter pub add tencent_cloud_chat_contact
flutter pub add tencent_cloud_chat_user_profile
flutter pub add tencent_cloud_chat_group_profile
For demonstration purposes, we suggest importing all of them. However, in real-world projects, you can import packages based on your specific requirements.
The architecture of Flutter Chat UIKit is shown below:


Step 2. Initial Setup for UIKit

Before you start using each Modular Package UI component, follow these initial setup steps:
Global Configuration
Replace your project's MaterialApp by TencentCloudChatMaterialApp.
This enables automatic management and configuration of language, theme (with material3), theme mode, and other settings. If you prefer manual configuration, refer to Implement the global configuration for UIKit manually.
Initialization and Login
Call TencentCloudChat.controller.initUIKit to initialize and log in.
Pass in the sdkAppID, userID, and userSig of your Tencent Cloud Chat application created in the previous step. Also, declare the register of each sub Modular UI Package in the usedComponentsRegister list.
TencentCloudChat.controller.initUIKit(
  options: const TencentCloudChatInitOptions(
    sdkAppID: , /// [Required]: The SDKAppID of your Tencent Cloud Chat application
    userID: , /// [Required]: The userID of the logged-in user
    userSig: , /// [Required]: The userSig of the logged-in user
  ),
  components: const TencentCloudChatInitComponentsRelated( /// [Required]: The modular UI components related settings, taking effects on a global scale.
    usedComponentsRegister: [
      /// [Required]: List of registration functions for the components used in the Chat UIKit.
          TencentCloudChatConversationManager.register,
          TencentCloudChatMessageManager.register,
          TencentCloudChatUserProfileManager.register,
          TencentCloudChatGroupProfileManager.register,
          TencentCloudChatContactManager.register,
      ],
  ),
);
Perfect! With the global configuration complete, we're now ready to dive into the usage of our Modular UI Components. Let's explore how they can enhance your chat application experience.

Step3. Integrating Modular UI Components

In most use cases, you'll need to manually instantiate and add the TencentCloudChatConversation and TencentCloudChatContact components to a widget, if necessary.
Other components are automatically navigated based on user actions.
In this tutorial, we'll use the bottomNavigationBar to manage the pages and switch between the TencentCloudChatConversation and TencentCloudChatContact components.
First, declare a currentIndex variable and a List<Widget> pages array to indicate the currently selected component and store the component instances.
List<Widget> pages = [];
int currentIndex = 0;
Store the instances in the pages array.
pages = [
      const TencentCloudChatConversation(),
      const TencentCloudChatContact(),
    ];
Finally, modify the build method as follows:
@override
  Widget build(BuildContext context) {
    return Scaffold(
      bottomNavigationBar: BottomNavigationBar(
        type: BottomNavigationBarType.fixed,
        currentIndex: currentIndex,
        onTap: (index) async {
          if (index != currentIndex) {
            setState(
                  () {
                currentIndex = index;
              },
            );
          }
        },
        items: const [
          BottomNavigationBarItem(
              icon: Icon(Icons.chat_bubble_outline), label: "Chats"),
          BottomNavigationBarItem(
              icon: Icon(Icons.contacts), label: "Contacts"),
        ],
      ),
      body: pages[currentIndex],
    );
  }
And that's it! You've successfully integrated the components.
Looking back, you can see that the simplified integration code on GitHub repo.

Step 4. Experience the Flutter Chat UIKit in Action

Now, let's run the project and experience the Flutter Chat UIKit.
Log in with the first test account created in the initUIKit method and launch the app.
Start by running flutter run.
Note：
If you encounter issues with iOS not running or Android SDK version mismatch, please refer to our sample app repo and choose the appropriate version configuration.
Once you've successfully entered the app, you'll see the Conversation and Contact pages, with the ability to switch between them at the bottom.
However, there are no conversations to test yet.
Don't worry! Switch to the Contacts page, click 'Add Contact' in the top-right corner, and add the other test account as a contact. You'll now see the other account in the Contacts list.

Click on the contact to start chatting. You can also rerun the app, log in with the other user's UserID, and experience sending messages to each other.
In conclusion, we've now completed the entire simplified integration process. Thank you for experiencing the power of Tencent Cloud Flutter Chat UIKit.
For more information on detailed integration, configuration, and advanced usage, please refer to this guide: Detailed Integration Guide.