Theme should automatically change on phone settings change.

androidApp/src/main/AndroidManifest.xml

@@ -15,7 +15,8 @@
         android:supportsRtl="true"
         android:networkSecurityConfig="@xml/network_security_config"
         android:theme="@style/NoBar"
-        android:dataExtractionRules="@xml/data_extraction_rules">
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:configChanges="uiMode">
         <activity
             android:name=".MainActivity"
             android:theme="@style/SplashTheme"

androidApp/src/main/java/bou/amine/apps/readerforselfossv2/android/MyApp.kt

@@ -3,11 +3,14 @@ package bou.amine.apps.readerforselfossv2.android
 import android.app.NotificationChannel
 import android.app.NotificationManager
 import android.content.Context
+import android.content.res.Configuration
 import android.graphics.drawable.Drawable
 import android.net.Uri
 import android.os.Build
 import android.widget.ImageView
 import android.widget.Toast
+import androidx.appcompat.app.AppCompatDelegate
+import androidx.appcompat.app.AppCompatDelegate.*
 import androidx.lifecycle.DefaultLifecycleObserver
 import androidx.lifecycle.LifecycleOwner
 import androidx.lifecycle.ProcessLifecycleOwner
@@ -48,6 +51,7 @@ class MyApp : MultiDexApplication(), DIAware {
     private val viewModel: AppViewModel by instance()
     private val connectivityStatus: ConnectivityStatus by instance()
     private val driverFactory: DriverFactory by instance()
+    private val appSettingsService : AppSettingsService by instance()
 
     // TODO: handle with the "previous" way
     private val isConnectionAvailable: MutableStateFlow<Boolean> = MutableStateFlow(true)
@@ -132,6 +136,19 @@ class MyApp : MultiDexApplication(), DIAware {
         }
     }
 
+    override fun onConfigurationChanged(newConfig: Configuration) {
+        super.onConfigurationChanged(newConfig)
+        if (appSettingsService.getCurrentTheme() == MODE_NIGHT_FOLLOW_SYSTEM) {
+            var mode = when (newConfig.uiMode and Configuration.UI_MODE_NIGHT_MASK) {
+                Configuration.UI_MODE_NIGHT_YES -> MODE_NIGHT_YES
+                else -> MODE_NIGHT_NO
+            }
+            setDefaultNightMode(mode)
+        }
+
+
+    }
+
     class AppLifeCycleObserver(val connectivityStatus: ConnectivityStatus, val repository: Repository) : DefaultLifecycleObserver {
 
         override fun onResume(owner: LifecycleOwner) {

androidApp/src/main/res/values/mode_settings.xml

@@ -9,7 +9,7 @@
     <string-array name="ModeValues">
         <item>1</item> <!--MODE_NIGHT_NO-->
         <item>2</item> <!--MODE_NIGHT_YES-->
-        <item>0</item> <!--MODE_NIGHT_AUTO_TIME-->
+        <item>-1</item> <!--MODE_NIGHT_FOLLOW_SYSTEM-->
     </string-array>
 
     <string-array name="Voice">

shared/src/commonMain/kotlin/bou/amine/apps/readerforselfossv2/service/AppSettingsService.kt

@@ -35,6 +35,7 @@ class AppSettingsService {
     private var _fontSize: Int? = null
     private var _staticBar: Boolean? = null
     private var _font: String = ""
+    private var _theme: Int? = null
 
 
     init {
@@ -318,6 +319,17 @@ class AppSettingsService {
         return _font
     }
 
+    private fun refreshCurrentTheme() {
+        _theme = settings.getString(CURRENT_THEME, "-1").toInt()
+    }
+
+    fun getCurrentTheme(): Int {
+        if (_theme == null) {
+            refreshCurrentTheme()
+        }
+        return _theme ?: -1
+    }
+
     fun refreshApiSettings() {
         refreshPassword()
         refreshUsername()
@@ -346,6 +358,7 @@ class AppSettingsService {
         refreshFontSize()
         refreshFont()
         refreshStaticBarEnabled()
+        refreshCurrentTheme()
     }
 
     fun refreshLoginInformation(
@@ -444,5 +457,7 @@ class AppSettingsService {
         const val INFINITE_LOADING = "infinite_loading"
 
         const val ITEMS_CACHING = "items_caching"
+
+        const val CURRENT_THEME = "currentMode"
     }
 }