How Dropbox improves Scroll Performance on Android

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Building Carousel Part II: Speeding Up the Data Model

Company: Dropbox · Aug 6, 2014

Platform: iOS / Android

Dropbox engineers faced a brutal reality: reading 5,000 photos from SQLite took a full second on a Nexus 5. For users with 100,000+ photos, the standard approach would be unusable.

Scroll Performance Caching