Fix delayed application of HTTP engine changes

app/src/main/kotlin/com/hippo/ehviewer/Settings.kt

@@ -148,7 +148,7 @@ object Settings : DataStorePreferences(null) {
     var harmonizeCategoryColor by boolPref("harmonize_category_color", true)
     var preloadThumbAggressively by boolPref("preload_thumb_aggressively", false)
     var downloadOriginImage by boolPref("download_origin_image", false)
-    var enableCronet by boolPref("enable_cronet", true)
+    var enableCronet by boolPref("enable_cronet", true).observed { updateWhenEnableCronetChanges() }
     var recentFavCat by intPref("recent_fav_cat", FavListUrlBuilder.FAV_CAT_LOCAL)
     var defaultFavSlot by intPref("default_favorite_slot", -2)
     var securityDelay by intPref("require_unlock_delay", 0)

app/src/main/kotlin/com/hippo/ehviewer/SettingsCollector.kt

@@ -3,6 +3,8 @@ package com.hippo.ehviewer
 import android.app.UiModeManager
 import androidx.appcompat.app.AppCompatDelegate
 import androidx.core.os.LocaleListCompat
+import com.hippo.ehviewer.EhApplication.Companion.ktorClient
+import com.hippo.ehviewer.EhApplication.Companion.noRedirectKtorClient
 import com.hippo.ehviewer.client.EhCookieStore
 import com.hippo.ehviewer.client.EhEngine
 import com.hippo.ehviewer.client.EhTagDatabase
@@ -43,6 +45,13 @@ fun updateWhenKeepMediaStatusChanges() {
     }
 }
 
+fun updateWhenEnableCronetChanges() {
+    collectScope.launchIO {
+        ktorClient = ktorClient.apply { close() }
+        noRedirectKtorClient = noRedirectKtorClient.apply { close() }
+    }
+}
+
 fun updateWhenThemeChanges() {
     collectScope.launch {
         delay(100) // Avoid recompose being cancelled

app/src/main/kotlin/com/hippo/ehviewer/ui/settings/AdvancedScreen.kt

@@ -36,8 +36,6 @@ import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import com.hippo.ehviewer.BuildConfig
-import com.hippo.ehviewer.EhApplication.Companion.ktorClient
-import com.hippo.ehviewer.EhApplication.Companion.noRedirectKtorClient
 import com.hippo.ehviewer.EhDB
 import com.hippo.ehviewer.R
 import com.hippo.ehviewer.Settings
@@ -147,11 +145,6 @@ fun AdvancedScreen(navigator: DestinationsNavigator) {
                 summary = if (enableCronet) "Cronet" else "OkHttp",
             ) {
                 coroutineScope.launch {
-                    fun reset() {
-                        ktorClient = ktorClient.apply { close() }
-                        noRedirectKtorClient = noRedirectKtorClient.apply { close() }
-                    }
-
                     dialogState.awaitPermissionOrCancel(
                         title = R.string.settings_advanced_http_engine,
                         showCancelButton = false,
@@ -162,7 +155,6 @@ fun AdvancedScreen(navigator: DestinationsNavigator) {
                                     selected = !enableCronet,
                                     onClick = {
                                         enableCronet = false
-                                        reset()
                                     },
                                     shape = SegmentedButtonDefaults.itemShape(index = 0, count = 2),
                                 ) {
@@ -172,7 +164,6 @@ fun AdvancedScreen(navigator: DestinationsNavigator) {
                                     selected = enableCronet,
                                     onClick = {
                                         enableCronet = true
-                                        reset()
                                     },
                                     shape = SegmentedButtonDefaults.itemShape(index = 1, count = 2),
                                     enabled = isCronetAvailable,