Fix: UI performance when downloading - #53
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Lakr233 merged 2 commits intoFeb 28, 2026
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Move per-manifest row content from DownloadView's ForEach closure into a dedicated PackageManifestRow view. This isolates @observable property reads (state.percent, hint) to each row's own observation scope, so progress changes on one manifest only re-render that specific row instead of the entire download list. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Throttle .progress{} callback to fire at most once per 200ms (always
allow fraction >= 1.0 through immediately). Reduces UI updates from
dozens/sec to ~5/sec per download.
- Batch two separate struct field mutations into a single copy-modify-
assign, halving @observable withMutation notifications per update.
- Remove saveManifests() from progress/speed callbacks. Progress
percentage is transient state; terminal state changes (complete,
pause, error) already persist via their own saveManifests() calls.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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hash 函数还原了 
尝试了移除@State，还是会卡 还是需要隔离组件 & 控制刷新频次（现有的两个 commit） |
bo2themax
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Feb 28, 2026
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下载 IPA 过程中滑动下载页面会出现明显的卡顿和设备发热，原因是整个页面 UI 一直被下载进度更新导致重绘。
做了以下修改