ClassZip

HarmonyOS class review app · computer contest entry2026Completed

HarmonyOS
ArkTS
ArkUI
DeepSeek API
Core Speech Kit
Core Vision Kit

Contest

In July 2026 I teamed up with students from Zhengzhou University for the China Collegiate Computing Contest, AI Creativity Competition (HarmonyOS track, application innovation). I did all of the development, from an empty project to a working app, over more than 30 versions; the preliminary round submission was v1.7.31. My teammates handled requirements, test feedback and contest materials.

Features

Live transcription of lecture recordings with Core Speech Kit on the phone; recording continues with the screen off, and key points can be marked while listening
Import PDF, images, PPTX, DOCX, TXT and Markdown; scanned pages go through local OCR with Core Vision Kit
Marked transcripts, slides and past exams are sent together to DeepSeek, which streams a class summary and final review materials; export to PDF / Markdown
Audio, images and original files stay on the phone; only the extracted text is uploaded

Built on HarmonyOS 6.1.1 with ArkTS / ArkUI and V2 state management.