82 lines
3.8 KiB
Kotlin
82 lines
3.8 KiB
Kotlin
package top.yeij.hearth.webview
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import android.annotation.SuppressLint
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import android.app.Activity
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import android.graphics.Color
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import android.view.ViewGroup
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import android.webkit.WebView
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import android.webkit.WebViewClient
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// WebView 工厂：统一内核配置，桌面层挂到指定父容器，内容层按需创建
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// WebView factory: unified kernel config; the desktop layer attaches to a given
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// parent container, content layers are created on demand
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class WebViewManager(private val activity: Activity) {
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// 创建桌面 WebView（底层 H5）挂到 parent，加载内置 index.html
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// Create the desktop WebView (bottom H5 layer) under parent, load bundled index.html
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@SuppressLint("SetJavaScriptEnabled")
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fun attach(bridge: JsBridge, parent: ViewGroup): WebView {
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val webView = WebView(activity)
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webView.setBackgroundColor(Color.TRANSPARENT)
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configure(webView)
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webView.addJavascriptInterface(bridge, "HearthBridge")
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webView.webViewClient = WebViewClient()
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webView.loadUrl("file:///android_asset/h5/index.html")
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parent.addView(webView, ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT))
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return webView
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}
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// 创建内容 WebView（webAPP 标签页），仅配置不加载、不挂载（由宿主管理）
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// 透明背景：webAPP 未声明背景色时透出桌面壁纸，而非默认白底
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// Create a content WebView (webapp tab), configured but not loaded/attached
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// (lifecycle is managed by the host); transparent background so a webapp without
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// a declared background shows the wallpaper instead of a default white
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@SuppressLint("SetJavaScriptEnabled")
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fun createContentWebView(ua: String?, scale: Int?): WebView {
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val webView = WebView(activity)
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webView.setBackgroundColor(Color.TRANSPARENT)
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configure(webView)
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// UA 解析：desktop/pc → PC UA；自定义字符串 → 直接用；null → 默认平板 UA
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// UA resolution: desktop/pc -> desktop UA; custom string -> used as-is;
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// null -> default tablet UA
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webView.settings.userAgentString = when {
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ua == null -> UA_TABLET
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ua == "desktop" || ua == "pc" -> UA_DESKTOP
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else -> ua
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}
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// scale 由 WebAppHost 在 onPageFinished 里通过 CSS zoom 实现（reflow 缩放），
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// 此处不再做 View 级别缩放
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// scale is applied by WebAppHost via CSS zoom in onPageFinished (reflow
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// scaling); no view-level scaling here
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return webView
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}
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// 统一内核配置：JS、宽视口、DOM 存储，禁用缩放
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// Common kernel config: JS, wide viewport, DOM storage, zoom disabled
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@SuppressLint("SetJavaScriptEnabled")
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private fun configure(webView: WebView) {
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webView.settings.apply {
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javaScriptEnabled = true
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useWideViewPort = true
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loadWithOverviewMode = true
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setSupportZoom(false)
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domStorageEnabled = true
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// Android 11 + targetSdk 30 默认禁用 file:// 访问，本地离线包需要显式开启
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// Android 11 + targetSdk 30 disables file:// by default; local offline
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// packages need it explicitly enabled
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allowFileAccess = true
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allowContentAccess = true
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}
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}
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companion object {
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// PC 版 UA（desktop/pc）
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private const val UA_DESKTOP =
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"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 " +
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"(KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
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// 安卓平板 UA（默认）
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private const val UA_TABLET =
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"Mozilla/5.0 (Linux; Android 13; SM-X700 Build/TP1A.220624.014) " +
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"AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
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}
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}
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