bot/apps/android

Hanzo Bot Android App

Status: extremely alpha. The app is actively being rebuilt from the ground up.

Rebuild Checklist

• New 4-step onboarding flow
• Connect tab with Setup Code + Manual modes
• Encrypted persistence for gateway setup/auth state
• Chat UI restyled
• Settings UI restyled and de-duplicated (gateway controls moved to Connect)
• QR code scanning in onboarding
• Performance improvements
• Streaming support in chat UI
• Request camera/location and other permissions in onboarding/settings flow
• Push notifications for gateway/chat status updates
• Security hardening (biometric lock, token handling, safer defaults)
• Voice tab full functionality
• Screen tab full functionality
• Full end-to-end QA and release hardening

Open in Android Studio

• Open the folder apps/android.

Build / Run

cd apps/android
./gradlew :app:assembleDebug
./gradlew :app:installDebug
./gradlew :app:testDebugUnitTest

Kotlin Lint + Format

pnpm android:lint
pnpm android:format

Android framework/resource lint (separate pass):

pnpm android:lint:android

Direct Gradle tasks:

cd apps/android
./gradlew :app:ktlintCheck :benchmark:ktlintCheck
./gradlew :app:ktlintFormat :benchmark:ktlintFormat
./gradlew :app:lintDebug

gradlew auto-detects the Android SDK at ~/Library/Android/sdk (macOS default) if ANDROID_SDK_ROOT / ANDROID_HOME are unset.

Macrobenchmark (Startup + Frame Timing)

cd apps/android
./gradlew :benchmark:connectedDebugAndroidTest

Reports are written under:

• apps/android/benchmark/build/reports/androidTests/connected/

Perf CLI (low-noise)

Deterministic startup measurement + hotspot extraction with compact CLI output:

cd apps/android
./scripts/perf-startup-benchmark.sh
./scripts/perf-startup-hotspots.sh

Benchmark script behavior:

• Runs only StartupMacrobenchmark#coldStartup (10 iterations).
• Prints median/min/max/COV in one line.
• Writes timestamped snapshot JSON to apps/android/benchmark/results/.
• Auto-compares with previous local snapshot (or pass explicit baseline: --baseline <old-benchmarkData.json>).

Hotspot script behavior:

• Ensures debug app installed, captures startup simpleperf data for .MainActivity.
• Prints top DSOs, top symbols, and key app-path clues (Compose/MainActivity/WebView).
• Writes raw perf.data path for deeper follow-up if needed.

Run on a Real Android Phone (USB)

1. On phone, enable Developer options + USB debugging.
2. Connect by USB and accept the debugging trust prompt on phone.
3. Verify ADB can see the device:

adb devices -l

4. Install + launch debug build:

pnpm android:install
pnpm android:run

If adb devices -l shows unauthorized, re-plug and accept the trust prompt again.

USB-only gateway testing (no LAN dependency)

Use adb reverse so Android localhost:18789 tunnels to your laptop localhost:18789.

Terminal A (gateway):

pnpm hanzo-bot gateway --port 18789 --verbose

Terminal B (USB tunnel):

adb reverse tcp:18789 tcp:18789

Then in app Connect → Manual:

• Host: 127.0.0.1
• Port: 18789
• TLS: off

Hot Reload / Fast Iteration

This app is native Kotlin + Jetpack Compose.

• For Compose UI edits: use Android Studio Live Edit on a debug build (works on physical devices; project minSdk=31 already meets API requirement).
• For many non-structural code/resource changes: use Android Studio Apply Changes.
• For structural/native/manifest/Gradle changes: do full reinstall (pnpm android:run).
• Canvas web content already supports live reload when loaded from Gateway __bot__/canvas/ (see docs/platforms/android.md).

Connect / Pair

1. Start the gateway (on your main machine):

pnpm hanzo-bot gateway --port 18789 --verbose

2. In the Android app:

• Open the Connect tab.
• Use Setup Code or Manual mode to connect.

3. Approve pairing (on the gateway machine):

hanzo-bot devices list
hanzo-bot devices approve <requestId>

More details: docs/platforms/android.md.

Permissions

• Discovery:
  • Android 13+ (API 33+): NEARBY_WIFI_DEVICES
  • Android 12 and below: ACCESS_FINE_LOCATION (required for NSD scanning)
• Foreground service notification (Android 13+): POST_NOTIFICATIONS
• Camera:
  • CAMERA for camera.snap and camera.clip
  • RECORD_AUDIO for camera.clip when includeAudio=true

Integration Capability Test (Preconditioned)

This suite assumes setup is already done manually. It does not install/run/pair automatically.

Pre-req checklist:

1. Gateway is running and reachable from the Android app.
2. Android app is connected to that gateway and hanzo-bot nodes status shows it as paired + connected.
3. App stays unlocked and in foreground for the whole run.
4. Open the app Screen tab and keep it active during the run (canvas/A2UI commands require the canvas WebView attached there).
5. Grant runtime permissions for capabilities you expect to pass (camera/mic/location/notification listener/location, etc.).
6. No interactive system dialogs should be pending before test start.
7. Canvas host is enabled and reachable from the device (do not run gateway with BOT_SKIP_CANVAS_HOST=1; startup logs should include canvas host mounted at .../__bot__/).
8. Local operator test client pairing is approved. If first run fails with pairing required, approve latest pending device pairing request, then rerun:
9. For A2UI checks, keep the app on Screen tab; the node now auto-refreshes canvas capability once on first A2UI reachability failure (TTL-safe retry).

hanzo-bot devices list
hanzo-bot devices approve --latest

Run:

pnpm android:test:integration

Optional overrides:

• BOT_ANDROID_GATEWAY_URL=ws://... (default: from your local Hanzo Bot config)
• BOT_ANDROID_GATEWAY_TOKEN=...
• BOT_ANDROID_GATEWAY_PASSWORD=...
• BOT_ANDROID_NODE_ID=... or BOT_ANDROID_NODE_NAME=...

What it does:

• Reads node.describe command list from the selected Android node.
• Invokes advertised non-interactive commands.
• Skips screen.record in this suite (Android requires interactive per-invocation screen-capture consent).
• Asserts command contracts (success or expected deterministic error for safe-invalid calls like sms.send, notifications.actions, app.update).

Common failure quick-fixes:

• pairing required before tests start:
  • approve pending device pairing (hanzo-bot devices approve --latest) and rerun.
• A2UI host not reachable / A2UI_HOST_NOT_CONFIGURED:
  • ensure gateway canvas host is running and reachable, keep the app on the Screen tab. The app will auto-refresh canvas capability once; if it still fails, reconnect app and rerun.
• NODE_BACKGROUND_UNAVAILABLE: canvas unavailable:
  • app is not effectively ready for canvas commands; keep app foregrounded and Screen tab active.

Contributions

This Android app is currently being rebuilt. Maintainer: @obviyus. For issues/questions/contributions, please open an issue or reach out on Discord.