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fix(Picker): optimize scrolling performance when large data #4014
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🤔 这个 PR 的性质是?
🔗 相关 Issue
💡 需求背景和解决方案
背景:当数据量大的时候之前的picker会非常卡,主要原因:全量渲染;次要原因:频繁setData
解决方案:当item数超过100启用虚拟滚动,5个可见区域,8个缓冲区,确保滚动性能的同时用户对列表复用无感知,丝滑流畅;setData设置16ms节流提升性能与体验
📝 更新日志
fix(Picker): 优化大量数据时列表滚动性能
本条 PR 不需要纳入 Changelog
☑️ 请求合并前的自查清单