Greg Pomerantz
d82ecf74ac
The A/B/C harness series: sltest (Slint) / egtest (egui) / tttest (Tauri 2 → wry → Android WebView/Chromium). Identical scene to sltest: 8580 full-width rows, 150 px + 2 px divider, alternating colors, virtualized (26-element DOM pool), custom touch drag + exponential-decay fling (sltest decay constant 7.42), rAF-driven frame loop. FR logging: the rAF callback records gap/cost exactly like the Rust harnesses; lines batch (~120) and cross the Tauri event bridge once per second (JNI round trip kept off the per-frame path). Rust side drains to a dedicated writer thread → /sdcard/Android/data/wow.gmp.tttest/files/Documents/fr.log (Tauri document_dir = getExternalFilesDir(DOCUMENTS) — the framework CREATES it; a raw std::fs mkdir of the app's external tree is SELinux-denied on Android 11+). Same FR-line format → fr_capture.py is the referee (its launch check now falls back to the package's LAUNCHER activity via monkey for non-NativeActivity apps). Gotchas learned (see frontend/dist/index.html comments): - touch-action is NOT inherited: touches land on .row, so each row must declare touch-action:none or the WebView claims the pan and cancels the page's drag (only a few px register). - Fling velocity must be a per-EVENT EMA; frame-based tracking dies when touch events sample slower than rAF (adb swipe ≈ 17 Hz). - Drag sign: finger up → offset grows (offset -= finger dy). - Tauri v2 'brownfield' is the NORMAL direct-IPC mode (not an app-provides-content mode); the mobile schema rejects security.pattern entirely. - Custom #[tauri::command]s hit the two-pass app-command ACL chicken-and-egg; the core:default event bridge avoids it. - Rust log output needs a logcat backend (log/std + __android_log_write) or it is invisible. Emulator (60 Hz, scripted swipes): 1319 frames, median 16.70 ms, 5 isolated drops (0.38%), all at swipe-injection moments, render cost med 2 ms. aarch64 phone build compiles (11 MB APK); phone testing pending (personal-device policy). Build: harnesses/tttest/scripts/build.sh [x86_64|aarch64] — cargo-tauri CLI (v2.12.4, prebuilt) drives the gradle build; signed with the debug keystore.
84 lines
2.4 KiB
Plaintext
84 lines
2.4 KiB
Plaintext
import java.util.Properties
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import org.jetbrains.kotlin.gradle.dsl.JvmTarget
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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 = 37
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namespace = "wow.gmp.tttest"
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defaultConfig {
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manifestPlaceholders["usesCleartextTraffic"] = "false"
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applicationId = "wow.gmp.tttest"
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minSdk = 24
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targetSdk = 37
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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 {
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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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optimization {
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enable = true
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}
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proguardFiles(
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*fileTree(".") {
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include("**/*.pro")
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exclude("build/**")
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}.files.toTypedArray()
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)
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}
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}
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compileOptions {
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sourceCompatibility = JavaVersion.VERSION_1_8
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targetCompatibility = JavaVersion.VERSION_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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kotlin {
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compilerOptions {
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jvmTarget = JvmTarget.JVM_1_8
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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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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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implementation("androidx.lifecycle:lifecycle-process:2.10.0")
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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 = file("tauri.build.gradle.kts"))
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