feat:Support dark mode on Android

Author: KevinnZou

webview/build.gradle.kts

@@ -51,6 +51,7 @@ kotlin {
             dependencies {
                 api("androidx.activity:activity-compose:1.7.2")
                 api("androidx.webkit:webkit:1.8.0")
+                implementation("androidx.webkit:webkit:1.9.0")
                 implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines")
             }
         }

webview/src/androidMain/kotlin/com/multiplatform/webview/web/AccompanistWebView.kt

@@ -1,6 +1,7 @@
 package com.multiplatform.webview.web
 
 import android.content.Context
+import android.content.res.Configuration
 import android.graphics.Bitmap
 import android.os.Build
 import android.view.ViewGroup
@@ -18,6 +19,8 @@ import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.toArgb
 import androidx.compose.ui.viewinterop.AndroidView
+import androidx.webkit.WebSettingsCompat
+import androidx.webkit.WebViewFeature
 import com.multiplatform.webview.jsbridge.WebViewJsBridge
 import com.multiplatform.webview.util.KLogger
 
@@ -198,6 +201,19 @@ fun AccompanistWebView(
                         domStorageEnabled = it.domStorageEnabled
                     }
                 }
+                if (WebViewFeature.isFeatureSupported(WebViewFeature.FORCE_DARK)) {
+                    val nightModeFlags = resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK
+                    if (nightModeFlags == Configuration.UI_MODE_NIGHT_YES) {
+                        WebSettingsCompat.setForceDark(this.settings, WebSettingsCompat.FORCE_DARK_ON)
+                    } else {
+                        WebSettingsCompat.setForceDark(this.settings, WebSettingsCompat.FORCE_DARK_OFF)
+                    }
+
+                    WebSettingsCompat.setForceDarkStrategy(
+                        this.settings,
+                        WebSettingsCompat.DARK_STRATEGY_WEB_THEME_DARKENING_ONLY,
+                    )
+                }
             }.also {
                 val androidWebView = AndroidWebView(it, scope, webViewJsBridge)
                 state.webView = androidWebView