fix(mobile): iOS threads no longer jump to the top

[znoraka]

Problem

On iOS, the thread feed jumps straight back to the first message (offset 0), with no animation, once the keyboard has been opened on that screen. It shows up while typing (for example when the composer grows with a new line) and also later with the keyboard closed, on any re-render of the list.

Repro on iOS with a long thread: scroll up into history, focus the composer, type a few new lines, and the feed jumps to the top. Expected: it stays where you were reading.

Change

Bumps react-native-keyboard-controller from 1.22.4 to 1.22.6 and rebases the existing local patch onto it.

Cause: Reanimated 4.7 hands settled animated values back to React and sorts each one into props or style using the keys of the first useAnimatedProps evaluation. keyboard-controller 1.22.4's ScrollViewWithBottomPadding deliberately leaves contentOffset out of that first run, so the settled offset is filed as a style. The next React commit renders the scroll view without a contentOffset prop, and Fabric resets it to {0, 0}. Reanimated 4.5 spread settled values into props, so this regression arrived with the Expo 58 upgrade (#12045).

keyboard-controller fixed this in 1.22.5 (kirillzyusko/react-native-keyboard-controller#1629, same root cause). The local patch's behavior is unchanged; six hunks had to be adapted to 1.22.6's ../../reanimated hook wrappers and its new top-of-content clamp. It also carries over #14850's scrollViewRef guard in useExtraContentPadding, which 1.22.6 still needs.

1.22.5 and 1.22.6 include iOS and Android native changes, so this needs a new native build.

Scope and approval

No prior issue. I think this falls under the small-fix exception: it's an obvious regression (the chat jumps to the top) introduced by #12045's dependency upgrade, and the fix is the library's own patch release with no product or behavior change. The diff is the version pin, the rebased patch file, and the lockfile.

Verification

iOS 26 simulator, fresh dev-client build of this branch, long real threads:

• Before (1.22.4): scroll up, focus the composer, type new lines, and the feed jumped from about 7300 to 0 with no JS scrollTo (confirmed with temporary logging of programmatic scroll writes and scroll offsets).
• After (1.22.6): the same steps several times, plus re-renders from opening and closing a sheet, and the feed held position; the only large offset changes came from my own drags.
• Threads still open at the latest message, and opening the keyboard at the end still lifts the conversation.
• tsc --noEmit for apps/mobile passes.

Not checked: Android, which this bump also touches natively.

before-after.mp4

Claude Opus 5.5 via Claude Code (running in T3 Code).

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Approvability

Verdict: Approved at 6d8c61a

Macroscope's review found this PR approvable — This is a focused mobile dependency patch upgrade that fixes an iOS scroll-position regression while preserving the existing keyboard/inset integration. The remaining changes are dependency-selection and generated patch metadata, with no new capability, schema change, deployment change, or static-analysis override.

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📝 Walkthrough

Walkthrough

The mobile app upgrades react-native-keyboard-controller to 1.22.6 and applies an updated patch. The patch adds inset compensation, changes bottom-padding reporting and scroll-indicator padding, and adjusts scroll-offset bounds and iOS keyboard event handling.

Changes

Keyboard Controller Update

Layer / File(s)	Summary
Dependency version and patch selection apps/mobile/package.json, pnpm-workspace.yaml	The mobile dependency, release-age exclusion, and patched dependency reference change from version 1.22.4 to 1.22.6.
Inset inputs and reported padding patches/react-native-keyboard-controller@1.22.6.patch	The component variants pass inset-compensation values to their hooks. They report effective bottom padding and use keyboard padding alone for scroll indicators.
Adjusted-inset scroll calculations patches/react-native-keyboard-controller@1.22.6.patch	The extra-padding hooks support callable and shareable refs, include bottom compensation in padding totals, and apply leading compensation to scroll bounds. The iOS keyboard hook updates presentation height during keyboard events and passes leading compensation to content-offset calculations.

Priority: ⬇️ Low

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Bug fix

Suggested reviewers: juliusmarminge

Merge Risk: ⚪ Minimal · up to 6d8c6

The dependency and patch selections align, and the current thread-feed path accounts for the static inset separately. No concrete merge-blocking regression is established.

Architecture Summary

Architecture risk: 🔵 Low · up to 6d8c6

The change affects 3 systems.

Changed systems: apps/mobile, patches, pnpm-workspace.yaml

Architecture concerns
No architecture-level concerns identified.

Review details

Systems and components

• observed — apps/mobile (service) was modified; 1 changed file maps to changed impact.
• observed — patches (service) was modified; 1 changed file maps to changed impact.
• observed — pnpm-workspace.yaml (service) was modified; 1 changed file maps to changed impact.

Before / after behavior

• observed — Modified behavior in apps/mobile/package.json: The react-native-keyboard-controller dependency version changed from 1.22.4 to 1.22.6.
• observed — Modified behavior in patches/react-native-keyboard-controller@1.22.6.patch: The CommonJS patch metadata reflects an updated compiled KeyboardChatScrollView file.
• observed — Modified behavior in patches/react-native-keyboard-controller@1.22.6.patch: The CommonJS component passes both inset-compensation values into keyboard and extra-content-padding hooks.
• observed — Modified behavior in patches/react-native-keyboard-controller@1.22.6.patch: The CommonJS component derives reported padding using presentation height on iOS and total padding elsewhere, then notifies onContentInsetChange when that value changes.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly summarizes the main change: fixing iOS thread feeds that jump to the top.
Description check	✅ Passed	The description covers the problem, cause, change, scope exception, focused iOS verification, and untested Android behavior. It also provides visual evidence for the UI behavior change.

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Inline comments:
Review comments at @patches/react-native-keyboard-controller@1.22.6.patch:
- Line 583: Update reportedPadding in KeyboardChatScrollView to include
rest.contentInset?.bottom (defaulting to zero) in both the iOS and non-iOS
branches, so onContentInsetChange reports static inset plus dynamic padding.
Apply the same change to the CommonJS and module variants.

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📒 Files selected for processing (3)

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• patches/react-native-keyboard-controller@1.22.6.patch
• pnpm-workspace.yaml

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Dismissing prior approval to re-evaluate 6d8c61a

[roprgm]

Tested this on a physical iPhone 17 Pro (iOS 26.7.1), Release build on current main plus this PR. Before, the thread jumped to the top on re-renders (recording a voice note, agent output, keyboard). With 1.22.6 it holds position. 👍