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This article analyzes Android layout rendering performance issues and presents optimization strategies including AsyncLayoutInflater, X2C framework, and custom view factory approaches to reduce rendering time by 20-35%.
Xiaohongshu refactored Android’s AsyncLayoutInflater by introducing a configurable thread‑pool, safe object pools, and a singleton ViewCache, eliminating ArrayMap and LayoutInflater lock issues, which together yielded over 20% faster cold‑starts and page loads, demonstrating significant performance and business benefits.
This article examines the performance bottlenecks of Android's LayoutInflater, analyzes its source code and loading process, and demonstrates how to use AsyncLayoutInflater to off‑load layout inflation to a background thread, resulting in measurable UI frame‑time improvements.