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Mafengwo Technology
Mafengwo Technology
Feb 13, 2020 · Backend Development

How We Built a High‑Performance Geospatial Photo Index for a Travel App

This article details the design, algorithm selection, and performance optimizations behind a geospatial photo‑indexing service that aggregates and searches millions of user photos by location and time, enabling faster, more accurate travel content sharing in a mobile app.

Geospatial IndexingPerformance OptimizationS2 algorithm
0 likes · 14 min read
How We Built a High‑Performance Geospatial Photo Index for a Travel App
Xianyu Technology
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.

FlutterGPU TextureMVC
0 likes · 7 min read
Design and Implementation of a Custom Flutter Photo Album Component