添加应用内语言切换

app/src/main/java/io/legado/app/App.kt

@@ -43,7 +43,7 @@ class App : MultiDexApplication() {
         super.onCreate()
         INSTANCE = this
         CrashHandler().init(this)
-        LanguageUtils.setConfiguration(this)
+        LanguageUtils.setConfigurationOld(this)
         db = AppDatabase.createDatabase(INSTANCE)
         packageManager.getPackageInfo(packageName, 0)?.let {
             versionCode = it.versionCode

app/src/main/java/io/legado/app/help/storage/Restore.kt

@@ -188,7 +188,7 @@ object Restore {
             if (!BuildConfig.DEBUG) {
                 LauncherIconHelp.changeIcon(App.INSTANCE.getPrefString(PreferKey.launcherIcon))
             }
-            LanguageUtils.setConfiguration(App.INSTANCE)
+            LanguageUtils.setConfigurationOld(App.INSTANCE)
             App.INSTANCE.applyDayNight()
             postEvent(EventBus.SHOW_RSS, "")
             postEvent(EventBus.RECREATE, "")

app/src/main/java/io/legado/app/ui/config/OtherConfigFragment.kt

@@ -118,7 +118,7 @@ class OtherConfigFragment : BasePreferenceFragment(),
             PreferKey.replaceEnableDefault -> AppConfig.replaceEnableDefault =
                 App.INSTANCE.getPrefBoolean(PreferKey.replaceEnableDefault, true)
             PreferKey.language -> {
-                LanguageUtils.setConfiguration(App.INSTANCE)
+                LanguageUtils.setConfigurationOld(App.INSTANCE)
                 postEvent(EventBus.RECREATE, "")
             }
         }

app/src/main/java/io/legado/app/utils/LanguageUtils.kt

@@ -14,6 +14,7 @@ object LanguageUtils {
      * 设置语言
      */
     fun setConfiguration(context: Context): Context {
+        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
             val resources: Resources = context.resources
             val targetLocale: Locale = when (context.getPrefString(PreferKey.language)) {
                 "zh" -> Locale.CHINESE
@@ -22,19 +23,33 @@ object LanguageUtils {
                 else -> getSystemLocale()
             }
             val configuration: Configuration = resources.configuration
-        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
             configuration.setLocale(targetLocale)
             context.createConfigurationContext(configuration)
         } else {
+            context
+        }
+    }
+
+    /**
+     * 设置语言
+     */
+    fun setConfigurationOld(context: Context) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
+            val resources: Resources = context.resources
+            val targetLocale: Locale = when (context.getPrefString(PreferKey.language)) {
+                "zh" -> Locale.CHINESE
+                "tw" -> Locale.TRADITIONAL_CHINESE
+                "en" -> Locale.ENGLISH
+                else -> getSystemLocale()
+            }
+            val configuration: Configuration = resources.configuration
             @Suppress("DEPRECATION")
             configuration.locale = targetLocale
             @Suppress("DEPRECATION")
             resources.updateConfiguration(configuration, resources.displayMetrics)
-            context
         }
     }
 
-
     /**
      * 当前系统语言
      */