51CTO HarmonyOS Developer Community

Dec 17, 2025 · Mobile Development

Building a Children's Flag Learning App with HarmonyOS: Core Speech Kit & ArkTS Deep Dive

A HarmonyOS developer shares the technical journey of building 'Shengqu Guoqitong', a children's flag learning app, detailing why HarmonyOS was chosen over Android, Flutter, and React Native, and how Core Speech Kit's offline TTS/ASR and ArkTS declarative UI enabled efficient development of voice-driven, interactive educational features.