优化滚动条

app/src/main/java/com/stand/standapp/MainActivity.kt

@@ -275,10 +275,31 @@ class MainActivity : AppCompatActivity() {
     }
 
     private fun createGeckoRuntime(): GeckoRuntime {
-        val runtime = GeckoRuntime.getDefault(this)
-        runtime.settings.aboutConfigEnabled = true
-        runtime.settings.consoleOutputEnabled = true
-        // 强制清缓存，确保 JS/CSS 等资源获取最新版本
+        // 1. 将配置写入应用的本地沙盒文件 (YAML 格式)
+        val configFile = java.io.File(filesDir, "geckoview-config.yaml")
+        try {
+            val configContent = """
+                prefs:
+                  layout.testing.overlay-scrollbars.always-visible: true
+            """.trimIndent()
+            configFile.writeText(configContent)
+            Timber.tag("MainActivity").d("Wrote GeckoView config to: ${configFile.absolutePath}")
+        } catch (e: Exception) {
+            Timber.tag("MainActivity").e(e, "Failed to write geckoview-config.yaml")
+        }
+
+        // 2. 通过 GeckoRuntimeSettings.Builder 加载该 YAML 配置文件并创建 GeckoRuntime 实例
+        val settingsBuilder = org.mozilla.geckoview.GeckoRuntimeSettings.Builder()
+            .aboutConfigEnabled(true)
+            .consoleOutput(true)
+
+        if (configFile.exists()) {
+            settingsBuilder.configFilePath(configFile.absolutePath)
+        }
+
+        val runtime = GeckoRuntime.create(this, settingsBuilder.build())
+
+        // 3. 强制清缓存，确保 JS/CSS 等资源获取最新版本
         try {
 //            runtime.storageController.clearData(ClearFlags.ALL)
             Timber.tag("MainActivity").i("GeckoView cache cleared")