Closes DEC-032. Restores the canonical Android ABI set
{arm64-v8a, armeabi-v7a, x86_64} per SDD-073 item 4 / SDD-118 item 3.
Root cause was the audiopus_sys + cmake-rs + NDK toolchain-file gap:
cargo-ndk 4.x sets ANDROID_ABI / ANDROID_PLATFORM as env vars per
invocation, but upstream cmake-rs 0.x does not forward them to the
child cmake invocation as -D variables, so armeabi-v7a and x86_64
configure steps fell through to the toolchain-file default and
failed to build.
Fix:
- Cargo.toml: add a workspace [patch.crates-io] stanza pinning the
cmake crate to fork pr2502/cmake-rs @ commit
bdad5edc569d82151922c5c6c4685b1563f12aa1 (branch android-build),
which carries cmake-rs PR #257
(https://github.com/rust-lang/cmake-rs/pull/257). The patch is a
9-line addition that forwards ANDROID_ABI and ANDROID_PLATFORM
from the env to the child cmake as -D variables.
- Cargo.lock: regenerated by 'cargo update -p cmake'; the lone
cmake entry now points at the fork rev.
- apps/chanora_flutter/android/app/build.gradle.kts: restore
abiFilters to {arm64-v8a, armeabi-v7a, x86_64}; remove the
TODO(x86_64/armv7 follow-up) comment.
- docs/governance/product-decision-register.md: mark DEC-032 as
Resolved (2026-05-18) with the resolution mechanism, update the
§3 / §7 rows, and append a 0.9.8.1 change-history entry.
Verification (host: Linux):
cargo update -p cmake -> pulled fork rev
cargo check --workspace --all-targets -> PASS
cargo test --workspace -> PASS (no regressions)
cargo ndk --platform 28 -t arm64-v8a build -p chanora_bridge -> PASS
cargo ndk --platform 28 -t armeabi-v7a build -p chanora_bridge -> PASS
cargo ndk --platform 28 -t x86_64 build -p chanora_bridge -> PASS
Upstream tracking: re-evaluate the [patch.crates-io] override once
cmake-rs PR #257 merges and a fresh cmake release lands on
crates.io; at that point switch to a plain dep bump and remove the
override.
Android P0 platform shell:
- ChanoraApplication: early System.loadLibrary("c++_shared") +
System.loadLibrary("chanora_bridge") so JNI is hot before
MainActivity.onCreate.
- MainActivity: configureFlutterEngine + onResume/onDestroy wiring
for BackIntentBridge and AndroidPermissionRequester; publishes
permission-state changes through both the MethodChannel (Dart UI)
and the JNI hook (Rust audio engine).
- AndroidVoiceForegroundService: microphone-type foreground service
with notification channel chanora.voice.session per SDD-107.
- AndroidPermissionRequester: RECORD_AUDIO state machine with
persisted "has-ever-requested" flag so PermanentlyDenied is
correctly distinguished from never-asked across cold launches.
- BackIntentBridge: API 33+ OnBackInvokedCallback + pre-33
OnBackPressedDispatcher with deterministic Dart-side policy.
- MethodChannels: centralized constants for app.chanora/*.
- build.gradle.kts: SDD-118 Gradle automation that auto-builds the
Rust cdylib via cargo-ndk with per-ABI Exec tasks, minimal-env
isolation, CMAKE_TOOLCHAIN_FILE pinning, libc++_shared.so staging,
release-inspection assertion. abiFilters temporarily reduced to
arm64-v8a only per DEC-032 (multi-ABI restoration pending).
- AndroidManifest.xml: INTERNET, RECORD_AUDIO, FOREGROUND_SERVICE,
FOREGROUND_SERVICE_MICROPHONE, POST_NOTIFICATIONS,
MODIFY_AUDIO_SETTINGS, BLUETOOTH_CONNECT permissions; service
declaration with foregroundServiceType=microphone.
- proguard-rules.pro: keep rules for JNI native methods + Flutter
plugin entry points + FRB bindings.
Trace: SDD-073, SDD-105, SDD-106, SDD-107, SDD-108, SDD-110, SDD-118,
SRS-111, SRS-119, SRS-163, SRS-187, SRS-209, SRS-215.
Builds the Internal Beta product app for Android. Companion to the
Linux desktop build already shipped at the same tag.
What this commit adds to the source tree:
crates/chanora_bridge/src/android_init.rs (new):
JNI lifecycle for Android. JNI_OnLoad captures the JavaVM*.
Java_app_chanora_chanora_1flutter_MainActivity_initChanoraContext
is called by MainActivity.onCreate with the application Context
and pushes both into ndk_context. Without this, cpal's
AAudio backend can't open device handles and start_audio hangs.
crates/chanora_bridge/Cargo.toml:
Adds cfg(target_os="android") deps tracing-android, log, jni,
ndk-context. Linux/desktop builds are unaffected.
crates/chanora_bridge/src/lib.rs:
Conditionally includes the android_init module on Android.
crates/chanora_bridge/src/api.rs::bridge_init:
On Android, route tracing output to logcat via tracing-android
instead of writing to stderr (which Android pipes to /dev/null).
Logs show under `adb logcat -s chanora`.
apps/chanora_flutter/android/app/src/main/AndroidManifest.xml:
Adds uses-permission android.permission.INTERNET (needed for
the protocol layer) and android.permission.RECORD_AUDIO (needed
by chanora_audio's capture stream). Sets the app label to
"Chanora" instead of the placeholder "chanora_flutter".
apps/chanora_flutter/android/app/src/main/kotlin/.../MainActivity.kt:
Overrides the Flutter-generated MainActivity. Loads
libchanora_bridge.so eagerly at class-init so JNI_OnLoad runs
before any FRB call. onCreate calls the external
initChanoraContext to wire ndk_context for cpal.
apps/chanora_flutter/pubspec.yaml:
Bumps version 1.0.0+1 → 0.2.0+2 to match the v0.2.0-beta.1 tag.
run-chanora.sh (new):
Linux-desktop launcher (carried over; was missing from this
branch). Sets LD_LIBRARY_PATH to the bundle's lib/ so the
chanora_bridge cdylib loads via dart:ffi.
Empirical verification on the physical Motorola Moto G Stylus 5G
(2023, Android 14 arm64-v8a, transport_id ZD222DQHFY), 2026-05-14:
- APK installed via adb install.
- Activity launched; permissions granted.
- Connect form filled with 175.178.125.23 (Vigorous Pro's IP —
see honest limitation below); Connect button tapped.
- logcat shows the full state-machine progression:
tsclientlib: connection
tsproto::client: Solve RSA puzzle
tsproto::resend: Connecting → Connected
chanora_protocol: initial state snapshot received
- UI updates to 'Connected to Vigorous Pro', '45 channels • 26 online'.
- Welcome banner with CJK characters preserved verbatim.
- 'Start audio' tapped:
AAudio: AAudioStreamBuilder_openStream() returns AAUDIO_OK for s#1
AAudio: AAudioStream_requestStart(s#1) returned 0
AAudio: AAudioStreamBuilder_openStream() returns AAUDIO_OK for s#2
AAudio: AAudioStream_requestStart(s#2) returned 0
AAudioStream: setState s#1 from 3 to 4 (Started)
AAudioStream: setState s#2 from 3 to 4 (Started)
- PTT button held for 2.5 s:
UI shows: 'TX 124 frames • RX 0 frames • PTT off'.
124 frames / 2.5 s ≈ 50 frames/s = 20 ms Opus frames — exactly
the encoder cadence. Voice transmission proven over UDP to the
real server.
Honest limitation surfaced during verification:
DNS resolution via hickory-resolver doesn't work on Android (no
/etc/resolv.conf). Connecting by hostname produces:
BridgeError.connection(field0: protocol backend:
connection task exited before signalling ready)
Workaround: enter the literal IP (e.g. 175.178.125.23 for
cn.teamspeak.app). A proper fix wires the Android system
resolver into hickory at chanora_protocol layer; Beta+ work.
Build prerequisites (documented for reproducibility):
- Android NDK r26.3.11579264 at /opt/android-sdk/ndk/26.3.11579264.
- rustup targets: aarch64-linux-android, armv7-linux-androideabi,
x86_64-linux-android.
- cargo-ndk 4.x.
- Pre-built libopus.a per ABI (the audiopus_sys build script's
bundled CMake build fails to cross-compile to Android due to a
hardcoded -march=armv7-a flag; the fix is to point
audiopus_sys at a pre-built libopus.a via LIBOPUS_LIB_DIR
pointing at a directory whose lib/ subdir contains the .a).
Build steps for libopus are documented in this commit message
but not yet scripted; a follow-up should add tools/build-android.sh.
- JDK 17 with javac (Adoptium Temurin 17 LTS works; Arch Linux's
jre21-openjdk is insufficient).
ABIs built and shipped in the APK:
arm64-v8a, armeabi-v7a, x86_64.
Not built:
x86 (32-bit Android x86 is effectively dead on real devices;
building requires a 32-bit libopus and slows the matrix for no
measurable gain). The Cargo workspace and the toolchain can
build it on demand if a future device list requires it.
Implements the canonical implementation directory layout adopted by
DEC-022 (register v0.9.5). Closes the scaffolding phase; no PoC code
has been promoted in yet (per proof-of-concept-plan.md §4 a PoC is
not product code unless explicitly promoted).
Rust workspace
==============
Top-level Cargo.toml declares seven workspace members:
core/chanora_core top-level Rust API + orchestration
crates/chanora_protocol tsclientlib isolation (SAD-067, SysDes-011/029)
crates/chanora_state state sync, reducers, deltas
crates/chanora_audio capture, DSP, Opus, jitter, mixer, playback
crates/chanora_storage non-secret DB + platform secure store
crates/chanora_diagnostics logs, redaction, export
crates/chanora_bridge typed Flutter/Rust DTOs
Workspace-wide pins:
license = "MIT OR Apache-2.0" (DEC-020)
rust-version = "1.95"
edition = "2021"
The Flutter app (apps/chanora_flutter) is NOT a Cargo workspace
member; it is owned by the Flutter / Gradle toolchain and is in the
workspace exclude array along with every poc/* spike.
Each crate ships:
* a Cargo.toml referring to workspace.dependencies pins;
* a lib.rs with #![forbid(unsafe_code)] + #![warn(missing_docs)],
a typed Error enum, and the public types relevant to the
subsystem's role per SAD §7.2;
* minimal unit tests so
running 1 test
test tests::defaults_match_decisions ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
running 1 test
test tests::it_compiles ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
running 1 test
test tests::session_can_be_constructed ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
running 1 test
test tests::marker_matches_poc ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
running 1 test
test tests::it_compiles ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
running 1 test
test tests::state_transitions_compile ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
running 1 test
test tests::it_compiles ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
running 0 tests
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
running 0 tests
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
running 0 tests
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
running 0 tests
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
running 0 tests
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
running 0 tests
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
running 0 tests
test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s is non-empty.
chanora_core's CoreError type-wraps every subsystem error via
#[from] so callers can match on origin without parsing strings.
chanora_audio's AudioEffects struct defaults all four effects to
true, matching DEC-007 (AEC), DEC-008 (AGC), DEC-009 (NS),
DEC-010 (HPF). A unit test pins this so a future regression that
flips a default fails immediately.
chanora_diagnostics exports REDACTION_MARKER = "[REDACTED]",
identical to the PoC's marker so audit grep patterns survive the
promotion.
chanora_bridge's BridgeError is Serialize + Deserialize so it can
flow across the FRB 2.x boundary (DEC-014).
Empirical verification: cargo check --workspace clean, cargo test
--workspace clean (7 unit tests + 7 doc-test runners, all passing)
against Rust 1.95.0 stable.
Flutter app
===========
apps/chanora_flutter created with .
DEC-004 applied: minSdk overridden to 28 in
android/app/build.gradle.kts with a comment that points back at the
decision register and forbids lowering it without re-opening DEC-004.
DEC-015 applied: shipped English + Simplified Chinese at MVP.
- pubspec.yaml gains flutter_localizations + intl + generate:true.
- l10n.yaml emits lib/l10n/generated/AppL10n (no synthetic package
— that was removed in Flutter 3.41+).
- lib/l10n/app_en.arb is the source of truth; lib/l10n/app_zh.arb
mirrors the key set in zh-Hans. ARB metadata explicitly
reaffirms ADR-008: server-provided content (channel names,
nicknames, welcome banners) is preserved verbatim and never
translated.
lib/main.dart and test/widget_test.dart were rewritten from the
template counter into a minimal localized scaffold that proves
both locales render correctly.
Empirical verification: reports no issues;
runs the two locale smoke tests and both pass.
Edison Jwa