WIP: mobile thread legend list#29023
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chrisnojima wants to merge 26 commits intonojima/HOTPOT-next-670-cleanfrom
Open
WIP: mobile thread legend list#29023chrisnojima wants to merge 26 commits intonojima/HOTPOT-next-670-cleanfrom
chrisnojima wants to merge 26 commits intonojima/HOTPOT-next-670-cleanfrom
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chrisnojima
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Mar 17, 2026
chrisnojima
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…ignItemsAtEnd) Switches index.native.tsx to use LegendList directly with chronological data order and alignItemsAtEnd/initialScrollAtEnd instead of inverted+reversed array. Replaces onViewableItemsChanged scroll-load trigger with onStartReached.
Use messageTypeMap as extraData so LegendList re-renders naturally when placeholder messages resolve, eliminating the manual redraw counter. Enable recycleItems for better list performance.
Add STABLE_ANCHOR_ORDINAL (-3) at list index 0 so maintainVisibleContentPosition anchors to a fixed 1px item instead of SPECIAL_TOP_ORDINAL, whose dynamic height changes were corrupting LegendList's offset compensation. Also set estimatedItemSize=80 for better prepend scroll-offset baseline.
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