⚡ Bolt: Optimize HistoryGrouper with O(1) loop comparisons #115
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Optimizes the history grouping logic to improve performance on the history screen. 💡 What: - Pre-calculates `startOfToday` and `startOfYesterday` timestamps once outside the loop. - Replaces heavy `Calendar` operations inside the loop with simple `long` comparisons. - Removes redundant `Calendar` allocations. 🎯 Why: - `HistoryGrouper.group` was performing repeated `Calendar` date math for every item in the history list, which is computationally expensive (O(N * C)). - This was a potential source of frame drops when scrolling or loading large history lists. 📊 Impact: - Reduces grouping complexity to O(N). - Significantly reduces object allocation during grouping. 🔬 Measurement: - Verified correctness with a dedicated unit test covering Today, Yesterday, and Older date cases.
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⚡ Bolt: Optimize HistoryGrouper with O(1) loop comparisons
Optimizes the history grouping logic to improve performance on the history screen.
💡 What:
startOfTodayandstartOfYesterdaytimestamps once outside the loop.Calendaroperations inside the loop with simplelongcomparisons.Calendarallocations.🎯 Why:
HistoryGrouper.groupwas performing repeatedCalendardate math for every item in the history list, which is computationally expensive (O(N * C)).📊 Impact:
🔬 Measurement:
PR created automatically by Jules for task 5838464551610538086 started by @menny