CustomWidget

Xianyu Technology

Sep 19, 2019 · Mobile Development

Flutter Widget Rendering Optimization with Custom RenderObjects and DSL Integration

By replacing the naïve DSL‑to‑Widget mapping with custom Widget, Element, and RenderObject classes that respect match_parent and match_content semantics and leverage RelayoutBoundary optimizations, the team reduced layout complexity from O(N²) to O(N), boosting long‑list frame rates from about 28 fps to roughly 50 fps while outlining further refinements.