4aiman
a52e998fb6
Analysis in docs/brouter-findings.md: how BRouter knows roads (.rd5 segments), routes and reaches low elevation gain (profile uphill/downhill cost + kinematics), the three call surfaces, and an evaluation of two ideas — fill GPS gaps along roads, and offline waypoint route planning. License is MIT; the engine has no desktop-only deps, so it embeds on Android ART. Stage 1 (embed + bridge, compiles into the apk; on-device route not yet run): - vendored brouter-1.6.3-all.jar into the Android module (dexes cleanly) and bundled the trekking/shortest profiles + lookups.dat as assets, copied to files/brouter/profiles2 on launch - MainActivity: a brouter_command.txt handler on the existing FileObserver runs btools.router.RoutingEngine off the UI thread (recipe taken via javap from ServerHandler) and returns the track as GPX - Rust brouter_route command: same file bridge as GPS (request + command, poll for the result), registered in the invoke handler - frontend/js/router.js: BRouter.route(points, profile) -> GPX (parseRouteGPX) - LICENSE-brouter (MIT notice) kept alongside the vendored engine Segments (.rd5, ~13-23 MB per 5x5 tile) are delivered later (Stage 2, wired download inside BalDav). IMPLEMENTATION_PLAN.md tracks the 5 stages.
77 lines
No EOL
2.7 KiB
Kotlin
77 lines
No EOL
2.7 KiB
Kotlin
import java.util.Properties
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plugins {
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id("com.android.application")
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id("org.jetbrains.kotlin.android")
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id("rust")
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}
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val tauriProperties = Properties().apply {
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val propFile = file("tauri.properties")
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if (propFile.exists()) {
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propFile.inputStream().use { load(it) }
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}
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}
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android {
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compileSdk = 36
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namespace = "dev.baldav.app"
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defaultConfig {
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manifestPlaceholders["usesCleartextTraffic"] = "false"
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applicationId = "dev.baldav.app"
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minSdk = 24
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targetSdk = 36
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versionCode = tauriProperties.getProperty("tauri.android.versionCode", "1").toInt()
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versionName = tauriProperties.getProperty("tauri.android.versionName", "1.0")
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}
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buildTypes {
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getByName("debug") {
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manifestPlaceholders["usesCleartextTraffic"] = "true"
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isDebuggable = true
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isJniDebuggable = true
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isMinifyEnabled = false
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packaging { jniLibs.keepDebugSymbols.add("*/arm64-v8a/*.so")
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jniLibs.keepDebugSymbols.add("*/armeabi-v7a/*.so")
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jniLibs.keepDebugSymbols.add("*/x86/*.so")
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jniLibs.keepDebugSymbols.add("*/x86_64/*.so")
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}
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}
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getByName("release") {
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isMinifyEnabled = true
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proguardFiles(
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*fileTree(".") { include("**/*.pro") }
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.plus(getDefaultProguardFile("proguard-android-optimize.txt"))
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.toList().toTypedArray()
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)
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}
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}
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kotlinOptions {
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jvmTarget = "1.8"
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}
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buildFeatures {
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buildConfig = true
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}
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}
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rust {
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rootDirRel = "../../../"
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}
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dependencies {
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// BRouter offline routing engine (MIT, github.com/abrensch/brouter) — embedded so
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// routes are computed on-device without network. Called in-process from Kotlin
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// (btools.router.RoutingEngine). Segments (.rd5) live in app data dir; profiles in assets.
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implementation(files("libs/brouter-1.6.3-all.jar"))
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implementation("androidx.webkit:webkit:1.14.0")
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implementation("androidx.appcompat:appcompat:1.7.1")
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implementation("androidx.activity:activity-ktx:1.10.1")
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implementation("com.google.android.material:material:1.12.0")
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// Optional fused location provider (opt-in via settings). Guarded at runtime so
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// the app still works if Google Play services are absent — see GpsRecorderService.
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implementation("com.google.android.gms:play-services-location:21.3.0")
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testImplementation("junit:junit:4.13.2")
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androidTestImplementation("androidx.test.ext:junit:1.1.4")
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androidTestImplementation("androidx.test.espresso:espresso-core:3.5.0")
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}
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apply(from = "tauri.build.gradle.kts") |