Tencent/QMUI_Android ? reverse-engineered prompt

Build me an Android UI library that helps teams ship polished apps faster, with one place to control the app wide look and feel, like colors, navigation bar, dialogs, and lists.

I want a set of reusable UI components for common things like bottom sheets, tabs, rounded image views, pull to refresh, and other useful widgets, plus a few practical helpers for device info, screen info, keyboard handling, and status bar handling.

Please include a simple demo app so I can see how each component is used, and make it support Android 5.0 and above. Keep it easy to customize so it works for both new apps and existing ones. If you need current Android guidance for any implementation detail, look it up online.