dtourolleandClaude Opus 5
0679a1f524
G-4 said port to Android without rewriting the core, and nothing in crates/core, crates/ble or crates/fit needed touching (NFR-5) — the Android work is two files of glue and a Gradle project. btleplug's Android backend is a hybrid crate: the GATT work happens in Java and Rust drives it over JNI. `platform::init` has to run once with a JNIEnv, and it cannot come from Rust's own startup — JNI resolves classes with the calling thread's class loader, and a thread Rust spawned has only the bootstrap loader. So MainActivity.onCreate calls into src/android.rs, before super.onCreate: TauriActivity's super chain synchronously starts the thread that runs `run()`, which builds AppState and starts scanning while we are still in onCreate. Lose that race and droidplug's global_adapter() — an `expect` — panics inside the scan task, silently, for the life of the process. Failing soft here is not enough for the same reason, so init sets a READY flag and devices.rs asks before every call in. Bluetooth switched off at launch then reads as an ordinary "no adapter", which the connection screen already knows how to show, and onResume retries so switching it on and coming back works. The Java half is not a maven dependency. Upstream tells you to publish a 0.1.1-SNAPSHOT artifact to mavenLocal by hand, which no CI runner can reproduce and which drifts from the crate silently — the failure is a NoSuchMethodError at the first scan, not a build error. Instead sync-android-sources.sh lifts the classes out of the btleplug and jni-utils crate sources at exactly the versions in Cargo.lock, so a mismatch is impossible by construction. gen/ stays generated and untracked, so everything hand-written lives in src-tauri/android/ and is copied back after each `tauri android init`. check-android-sources.sh fails the build if a source exists only under gen/ or differs from its tracked copy: both are files git has never seen and the next init deletes, and the resulting APK builds, installs, and behaves as though they were never written. Permissions are split at API 31, because asking for one the platform does not know is a permanent denial. neverForLocation on BLUETOOTH_SCAN is a promise we can keep honestly: every scan filters by service UUID, so no location permission is needed on Android 12+. Also: tracing to logcat, since Android has no stdout and the default writer drops every line into a closed fd. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
56 lines
1.9 KiB
TOML
56 lines
1.9 KiB
TOML
[package]
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name = "bikecontrol-app"
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version.workspace = true
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edition.workspace = true
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license.workspace = true
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repository.workspace = true
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description = "BikeControl desktop shell: Tauri commands and the event bridge to the UI"
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[lib]
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# Tauri v2 convention: the app lives in a lib so the same code can be reused by
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# the Android/iOS entry points later (G-4).
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name = "bikecontrol_app_lib"
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crate-type = ["staticlib", "cdylib", "rlib"]
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[build-dependencies]
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tauri-build = { version = "2", features = [] }
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[dependencies]
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bikecontrol-core = { workspace = true }
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bikecontrol-ble = { workspace = true }
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bikecontrol-fit = { workspace = true }
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tauri = { version = "2", features = [] }
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tauri-plugin-dialog = "2"
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uuid = { workspace = true }
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chrono = { workspace = true }
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serde = { workspace = true }
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serde_json = { workspace = true }
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serde_yaml_ng = { workspace = true }
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roxmltree = { workspace = true }
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tokio = { workspace = true }
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anyhow = { workspace = true }
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thiserror = { workspace = true }
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tracing = { workspace = true }
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tracing-subscriber = { workspace = true }
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# Desktop-only: the crate is a `compile_error!` on anything that is not
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# Windows/Linux/macOS, and the mobile entry points (G-4) have their own
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# platform APIs for this. `wakelock.rs` degrades to a no-op there. On Android
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# the equivalent is FLAG_KEEP_SCREEN_ON, set in MainActivity.kt.
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[target.'cfg(any(windows, target_os = "linux", target_os = "macos"))'.dependencies]
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keepawake = "0.6.0"
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# Android-only (G-4). `src/android.rs` is the whole JNI surface: btleplug's Java
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# backend has to be initialised from a Java thread, and `tracing` has to be
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# pointed at logcat.
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#
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# `jni` is pinned to 0.19 because that is what btleplug 0.11 uses, and
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# `platform::init` takes a `&JNIEnv` from *that* version — a 0.21 JNIEnv is a
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# different type and would not compile.
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[target.'cfg(target_os = "android")'.dependencies]
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btleplug = { workspace = true }
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jni = "0.19"
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libc = "0.2"
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