Jan 13, 2026 · Mobile Development

HarmonyOS for Kids' Education: Technical Deep-Dive into 'Shengqu Guoqitong' App

A HarmonyOS developer shares the full technical practice of building a children's flag-learning app, covering technology selection (Core Speech Kit, ArkTS, Stage model), core feature implementation (offline voice synthesis/recognition, canvas drawing, puzzle game), global state management with AppStorage, performance optimizations for 200+ flags, and future plans for multi-device collaboration and AI integration.

ArkTSCore Speech KitDevEco Studio

0 likes · 26 min read

HarmonyOS for Kids' Education: Technical Deep-Dive into 'Shengqu Guoqitong' App

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.

ArkTSChildren EducationCore Speech Kit

0 likes · 29 min read