Xianyu Technology

May 30, 2019 · Mobile Development

Design and Implementation of a Custom Flutter Photo Album Component

The article describes a custom Flutter photo album component that uses a MethodChannel to bridge native modules for permission, caching, decoding, and OpenGL texture conversion, implements MVC architecture, employs lazy GridView pagination, GPU‑based resource recycling, scaled bitmap preview, and PageView preloading to achieve flexible UI, multi‑selection, and low memory usage, while remaining extensible for future features.