Kotlin on Chengyu Wanghttps://chengyu.eu/tags/kotlin/Recent content in Kotlin on Chengyu WangHugo -- gohugo.ioen© 2026 ChengyuTue, 17 Jun 2025 19:00:08 +0000100 Projects Before I Retire, #5: A Language-Learning App Built on Nursery Rhymes and Fairy Taleshttps://chengyu.eu/posts/android-language-learning-app/Tue, 17 Jun 2025 19:00:08 +0000https://chengyu.eu/posts/android-language-learning-app/Frustrated by bloated, ad-filled kids’ language apps, I built a clean native Android app that loads curated foreign-language rhymes and stories through a WebView.