UUChatTableView is a lightweight Objective-C iOS library providing a chat UI surface with text, image, and voice message support. The core library (Class/) includes a message model (UUMessage), layout frame calculator (UUMessageFrame), a bubble cell renderer (UUMessageCell) with a custom content button (UUMessageContentButton), a full-featured input bar (UUInputFunctionView) with voice recording and media actions, an audio player (UUAVAudioPlayer), an image browser (UUImageAvatarBrowser), and a voice recording HUD (UUVoiceRecordingHUDView). The library is distributed via CocoaPods and includes a pure-code demo application (Demo/) that showcases private and group chat scenarios with text, image, and voice messages, plus pull-to-load history and interactive UI elements. The architecture follows a delegate-driven pattern where the input bar notifies the view controller of user actions, and the data source manages message creation and layout computation. The codebase is well-structured, uses modern iOS APIs (PHPickerViewController, SF Symbols, iOS 13+), and demonstrates high craftsmanship with reusable, self-contained components.