uni-app

uni-app is a cross-platform framework for developing frontend applications using Vue.js. According to the README, developers can write one set of code and publish it to iOS, Android, HarmonyOS, responsive Web, and mini-programs such as WeChat, Alipay, Baidu, Douyin, Feishu, QQ, Kuaishou, DingTalk, Taobao, JD.com, and Xiaohongshu, as well as Quick Apps and HarmonyOS Meta Services. The project distinguishes between uni-app and uni-app x: - uni-app: The earlier generation, where the App engine uses the same technical architecture as mini-programs, with the logic layer using JavaScript and the rendering layer using web-view. - uni-app x: The next-generation version and current main branch. Page logic can be developed using js/ts/uts, and the App platform utilizes native rendering. The README claims it possesses rendering performance superior to native view systems, providing conclusions from view/text component performance tests and long-list frame drop tests: across Android, iOS, and HarmonyOS App platforms, rendering speed is 2-3 times that of native, and long-list frame rates are 2-4 times that of native. Detailed evaluation content can be found in the reports for Android, iOS, and HarmonyOS platforms under the benchmark directory. uts is a TypeScript-like cross-platform language: it compiles to Kotlin on Android, Swift on iOS, ArkTS on HarmonyOS Next, and JavaScript on Web and mini-program platforms. It is primarily used for native plugin extensions. The README also emphasizes that uni-app is an AI-friendly technical framework: application development can be completed using Vue, js/ts, and css. The project provides reinforcement learning tools for AI model training, and DCloud offers uni-agent to facilitate the use of AI for developing uni-app. Regarding repository structure: the benchmark directory contains performance evaluation reports, docs contains documentation, examples contains sample projects, src contains source code, test contains test cases, and CHANGELOG.md serves as the update log. The branches for uni-app and uni-app x differ: uni-app is divided into vue2 and vue3, with branches uni-app-vue2 and uni-app-vue3 respectively; the uni-app x branch is the open-source repository for the uni-app x version. The quick experience section provides a QR code for the hello uni-app x example and notes that hello uni-app (x) example code can be obtained from GitHub; Quick Apps are only supported for vivo, OPPO, and Huawei.