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Add inert Java plumbing for the Android pull model#57580

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bartlomiejbloniarz wants to merge 2 commits into
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export-D112309050
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Add inert Java plumbing for the Android pull model#57580
bartlomiejbloniarz wants to merge 2 commits into
mainfrom
export-D112309050

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@bartlomiejbloniarz

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Summary:
Java side of the pull model — dead code until the C++ wiring lands:

  • PullTransactionMountItem: asks C++ (via FabricUIManagerBinding.pullAndExecuteTransaction) to pull the surface's pending transaction and apply it synchronously on the UI thread.
  • FabricUIManager.onTransactionAvailable (JNI entry): enqueues a PullTransactionMountItem.
  • FabricUIManagerBinding.pullAndExecuteTransaction: extern declaration.

One item is enqueued per notification, mirroring iOS; redundant items no-op in C++.

Changelog:

[Android] [Added] - Add inert Java plumbing (PullTransactionMountItem, FabricUIManager.onTransactionAvailable) for the pull model

Differential Revision: D112309050

Bartlomiej Bloniarz and others added 2 commits July 16, 2026 06:32
Summary:
Adds the `enableMountingCoordinatorPullModelAndroid` experiment flag (default off) that gates the Android pull-model mounting migration. Config entry plus regenerated accessors only — no behavior change.

## Changelog:
[Android] [Added] - Add `enableMountingCoordinatorPullModelAndroid` feature flag

Differential Revision: D112309049
Summary:
Java side of the pull model — dead code until the C++ wiring lands:
- `PullTransactionMountItem`: asks C++ (via `FabricUIManagerBinding.pullAndExecuteTransaction`) to pull the surface's pending transaction and apply it synchronously on the UI thread.
- `FabricUIManager.onTransactionAvailable` (JNI entry): enqueues a `PullTransactionMountItem`.
- `FabricUIManagerBinding.pullAndExecuteTransaction`: extern declaration.

One item is enqueued per notification, mirroring iOS; redundant items no-op in C++.

## Changelog:
[Android] [Added] - Add inert Java plumbing (`PullTransactionMountItem`, `FabricUIManager.onTransactionAvailable`) for the pull model

Differential Revision: D112309050
@meta-cla meta-cla Bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Jul 16, 2026
@facebook-github-tools facebook-github-tools Bot added p: Software Mansion Partner: Software Mansion Partner p: Facebook Partner: Facebook labels Jul 16, 2026
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meta-codesync Bot commented Jul 16, 2026

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@bartlomiejbloniarz has exported this pull request. If you are a Meta employee, you can view the originating Diff in D112309050.

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CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. meta-exported p: Facebook Partner: Facebook p: Software Mansion Partner: Software Mansion Partner

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