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feat(deck-picker): draw tree hierarchy branch lines#21363

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ShaanNarendran wants to merge 1 commit into
ankidroid:mainfrom
ShaanNarendran:feat/deck-picker-hierarchy-lines
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feat(deck-picker): draw tree hierarchy branch lines#21363
ShaanNarendran wants to merge 1 commit into
ankidroid:mainfrom
ShaanNarendran:feat/deck-picker-hierarchy-lines

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@ShaanNarendran

@ShaanNarendran ShaanNarendran commented Jul 11, 2026

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- Adds a custom `RecyclerView.ItemDecoration` that dynamically draws
  the visual branch hierarchy for subdecks.
- Evaluates tree paths natively from the adapter's `currentList` data.
- Handles drawing rounded "L" branches connecting parents to nested children
  as well as continued vertical lines descending past inner children to later
  siblings.
@ShaanNarendran
ShaanNarendran force-pushed the feat/deck-picker-hierarchy-lines branch from 349b529 to 982299c Compare July 11, 2026 15:05
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