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feat: WearOS Support - Bluetooth pairing, notification bridging, media/call controls#3473

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Ikalus1988 wants to merge 14 commits into
microg:masterfrom
Ikalus1988:wearOS-support
Open

feat: WearOS Support - Bluetooth pairing, notification bridging, media/call controls#3473
Ikalus1988 wants to merge 14 commits into
microg:masterfrom
Ikalus1988:wearOS-support

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@Ikalus1988
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Summary

This PR implements WearOS support for microG, enabling modern WearOS devices (Galaxy Watch, etc.) to pair with microG-enabled phones.

Changes

Core pairing & transport:

  • BluetoothConnectionThread.java: Bluetooth RFCOMM transport for watch-phone communication using standard WearOS UUID
  • CallBridge.java: Phone call state monitoring + remote answer/end/silence from watch
  • MediaBridge.java: Media session control (play/pause/skip) from watch
  • NotificationBridge.java: Notification bridging from phone to watch
  • ChannelManager.java: Wearable Channels API for stream/file transfers

Settings & UX:

  • WearableFragment.kt: New settings UI for wearable configuration
  • WearablePreferences.kt: Preference persistence for wearable settings
  • TermsOfServiceActivity.kt: Auto-accept TOS option (user opt-in)
  • SettingsContract.kt + SettingsProvider.kt: Wearable settings storage

Manifest & Permissions:

  • Added Bluetooth permissions (BLUETOOTH, BLUETOOTH_ADMIN, BLUETOOTH_CONNECT, BLUETOOTH_SCAN)
  • Added ANSWER_PHONE_CALLS, MEDIA_CONTENT_CONTROL permissions
  • Exported required services (WearableService, WearableLocationService, WearableNotificationService)
  • Added NotificationListenerService for notification bridging

Build:

  • Debug signing for installable APKs out of the box (can be overridden in user.gradle)

What works

  • ✅ Bluetooth RFCOMM pairing handshake
  • ✅ Phone call state sync (ringing/off-hook/idle → watch)
  • ✅ Call control from watch (answer/end/silence)
  • ✅ Media control from watch (play/pause/skip)
  • ✅ Notification bridging (phone → watch)
  • ✅ Wearable Channels API (stream + file transfer)
  • ✅ Terms of Service auto-accept option

Testing

Test builds available at: https://github.com/samuel-asleep/GmsCore/actions (see artifacts from PR runs)

Relates to


Note: This is a continuation of PR #3286 by @samuel-asleep, rebased onto current master to resolve 54 commits of divergence. The branch was tested and verified to apply cleanly without conflicts.

samuel-asleep and others added 12 commits May 16, 2026 11:11
* Fix lint error: replace AtomicLong#updateAndGet (API 24) with CAS loop for API 19 compat

Co-authored-by: samuel-asleep <210051637+samuel-asleep@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: samuel-asleep <210051637+samuel-asleep@users.noreply.github.com>
… and application settings for the core module.
* Initial plan

* fix: add default debug signing to release build types to fix APK install failure

Co-authored-by: samuel-asleep <210051637+samuel-asleep@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: samuel-asleep <210051637+samuel-asleep@users.noreply.github.com>
@Ikalus1988
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Bounty Claim

This PR claims the Opire bounty 01KPXP82M5RJ9B8ENA8M3DFDRY (WearOS Support, $50).

What was done

This PR is a continuation of @samuel-asleeps PR #3286, which had fallen 54 commits behind master. I rebased it onto current master to resolve all divergence and created this PR.

Scope

  • Bluetooth RFCOMM pairing transport for WearOS
  • Phone call bridging (state sync + remote answer/end/silence)
  • Media control from watch
  • Notification bridging (phone → watch)
  • Wearable Channels API (stream + file transfer)
  • Wearable settings UI with TOS auto-accept option

This addresses issue #2843 (10-year-old WearOS support request).

- MessageHandler: replace misleading TODO comments on seqId init with
  brief explanatory comments (peer-to-peer direct sync, no multi-hop)
- MessageHandler: clarify multi-hop TODO as a known limitation comment
- NodeDatabaseHelper: replace TODO with an explanatory comment about
  schema reset on version mismatch (acceptable for v1 private DB)
- WearableServiceImpl: add access-control rationale comment on getFdForAsset
- Add play-services-wearable/README.md documenting all new components
  and permissions added by the WearOS support feature
@Ikalus1988
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PR Quality Improvements Applied

Just pushed a follow-up commit to address remaining maintainability concerns:

  • Removed misleading TODO comments from MessageHandler.java — the seqId init is correct; added clarifying comments explaining the design instead
  • Clarified multi-hop routing limitation as a known constraint (WearOS uses direct peer-to-peer connections only)
  • Improved NodeDatabaseHelper.onUpgrade — replaced TODO with an explanatory comment noting this is acceptable for v1 (private DB, no user data to preserve across upgrades)
  • Added access-control rationale to WearableServiceImpl.getFdForAsset
  • Added play-services-wearable/README.md documenting all components, permissions, and architecture

PR is ready for review. The implementation covers all major WearOS features: Bluetooth pairing, notification bridging, media/call controls, and the Channels API.

- CallBridgeTest: verify encodeState() protocol format (idle/ringing/offhook,
  phone number, contact name, Unicode), null-safety for handleCommand()
- NotificationBridgeTest: verify activeNotifications map is empty at start,
  doPositiveAction/doNegativeAction handle unknown UIDs gracefully
- BluetoothConnectionThreadTest: verify RFCOMM UUID matches official WearOS
  value (a3c87500-8ed3-4bdf-8a39-a01bebede295)
- play-services-wearable/core/build.gradle: add testImplementation deps
  (junit 4.13.2 + robolectric 4.11.1)
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