Flutter
Chat UI Kit

Install the selected UI packages, initialize the UI Kit, sign in, and register the components following the official demo. Configure native permissions for the media features you use. The Flutter UI Kit and Core SDK have separate environment requirements.

The UI Kit adds connected interface components on top of the messaging SDK. Use the Core SDK when you want to build the entire interface yourself.

Generate production UserSig on your backend. Pass it to the client for authentication and keep your application secret on the server.

They show individual integration steps. Follow the full guide for imports, initialization, login, error handling, and target-specific configuration. Test messaging with separate accounts before release.

Hosted Chat service usage follows your selected plan. Check the included features and allowances for your application; optional plugins and Call services can have separate requirements.

Install the documented Flutter package and complete native project configuration for each target. Test widget lifecycle together with the underlying iOS and Android behavior.

Check login, SDK readiness, send and receive events, and message state after reconnecting.

For the tencent_cloud_chat_conversation package used here, supply TencentCloudChatConversationBuilders to customize widgets such as conversationHeaderBuilder. For example, replace the list header with your product's title and search entry while retaining the connected conversation list. Keep builder signatures matched to your installed package release. These APIs belong to this package family; do not mix them with older TIMUIKitChat examples or a different Flutter UI Kit.