hansdezwartandClaude Opus 5
9f2081a0c9
A single Activity holding one WebView, in Java rather than Kotlin — for ~120 lines of setup Kotlin would only add its Gradle plugin, its stdlib in the APK and a third version to keep aligned with Gradle and AGP. One dependency: androidx.webkit 1.16.0. The assets are served from https://appassets.androidplatform.net through WebViewAssetLoader rather than file://. That is the part that matters: an https origin is a secure context, and localStorage — which holds every setting and the match in progress — is blocked on file://, so a saved game would silently vanish. Confirmed on device: force-quit mid-match and everything comes back. public_html stays the only copy of the web app. A task syncs it into the assets at build time, so the browser version and the app version cannot drift; the APK's index.html hashes identical to the working tree. sw.js is left out on purpose — it is cache-first, and a service-worker cache outlives an app upgrade, so it would serve a stale index.html with no way to clear it. The APK is the cache now. Three web APIs don't exist in a WebView, so the Activity supplies them: FLAG_KEEP_SCREEN_ON for navigator.wakeLock, native immersive mode for requestFullscreen(), and LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES so the panels' env(safe-area-inset-*) has something to report. textZoom is pinned to 100: the layout is built on clamp() and vw, and a large system font would scale the text inside it. The manifest declares no permissions whatsoever. Wiring note: AGP 9 refuses a Provider in sourceSets.assets.srcDir, since it can't tell generated from static directories. The sync is a task with a DirectoryProperty output, attached via androidComponents.onVariants, which is the supported path and carries the task dependency. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
79 lines
2.1 KiB
Kotlin
79 lines
2.1 KiB
Kotlin
import javax.inject.Inject
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plugins {
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id("com.android.application")
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}
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android {
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namespace = "nl.hansdezwart.bgclock"
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compileSdk = 36
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buildToolsVersion = "36.0.0"
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defaultConfig {
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applicationId = "nl.hansdezwart.bgclock"
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minSdk = 26
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targetSdk = 36
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versionCode = 1
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versionName = "1.0"
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}
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compileOptions {
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sourceCompatibility = JavaVersion.VERSION_17
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targetCompatibility = JavaVersion.VERSION_17
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}
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buildTypes {
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release {
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isMinifyEnabled = false
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}
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}
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}
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/**
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* The web app is not copied into the repo — it is read out of public_html at
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* build time, so the browser version and the app version cannot drift.
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*
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* sw.js is left behind on purpose: it is cache-first, and a service-worker cache
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* outlives an app upgrade, so it would go on serving the old index.html with no
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* way to clear it. Without the file the registration fails into its own .catch,
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* and the APK is the cache instead.
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*/
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abstract class SyncWebAssets : DefaultTask() {
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@get:InputDirectory
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@get:PathSensitive(PathSensitivity.RELATIVE)
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abstract val source: DirectoryProperty
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@get:OutputDirectory
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abstract val outputDir: DirectoryProperty
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@get:Inject
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abstract val fs: FileSystemOperations
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@TaskAction
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fun run() {
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fs.sync {
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from(source) { exclude("sw.js") }
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into(outputDir)
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}
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}
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}
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val webAssets = tasks.register<SyncWebAssets>("syncWebAssets") {
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source.fileValue(rootProject.file("../public_html"))
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}
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// the Variant API, not sourceSets.assets.srcDir: AGP 9 refuses a Provider there
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// because it can't tell generated from static, and this way the task dependency
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// is carried automatically
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androidComponents {
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onVariants { variant ->
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variant.sources.assets?.addGeneratedSourceDirectory(webAssets, SyncWebAssets::outputDir)
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}
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}
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dependencies {
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// the only dependency: WebViewAssetLoader, which serves the assets over a
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// real https origin so they count as a secure context
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implementation("androidx.webkit:webkit:1.16.0")
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}
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