Tencent Music Tech Team

May 9, 2023 · Mobile Development

Optimizing Animated Image Loading on iOS: Practices and Performance Comparison

The article explains how iOS’s lack of native GIF/WebP support leads to crashes when decoding all frames, and describes an optimized per‑frame loading component (QMAnimatedImageView) that uses CADisplayLink, NSCache, downsampling and memory‑limit tuning to dramatically reduce CPU, memory usage and jank while preserving smooth animation.