Merge pull request #16 from Dawn3901/1.0.17

Add simplified Chinese language support

Author: arn-c0de

app/src/main/java/com/example/checklist_interactive/MainActivity.kt

@@ -76,8 +76,14 @@ class MainActivity : ComponentActivity() {
     private fun updateLocale(context: Context): Context {
         val prefsManager = PreferencesManager(context)
         val languageCode = prefsManager.getAppLanguage()
-        val locale = Locale(languageCode)
-        Locale.setDefault(locale)
+        val locale = when {
+            languageCode.contains("-") -> Locale.forLanguageTag(languageCode) // 处理 "zh-CN"
+            languageCode.contains("_") -> {
+                val parts = languageCode.split("_")
+                if (parts.size > 1) Locale(parts[0], parts[1]) else Locale(languageCode) // 处理 "zh_CN"
+            }
+            else -> Locale(languageCode) 
+        }
 
         val config = Configuration(context.resources.configuration)
         config.setLocale(locale)

app/src/main/java/com/example/checklist_interactive/ui/settings/SettingsScreen.kt

@@ -661,7 +661,8 @@ fun SettingsScreen(
                         val languages = listOf(
                             "en" to stringResource(R.string.language_english),
                             "de" to stringResource(R.string.language_german),
-                            "es" to stringResource(R.string.language_spanish)
+                            "es" to stringResource(R.string.language_spanish),
+                            "zh-CN" to stringResource(R.string.language_simplified_chinese),
                         )
                         var expandedLang by remember { mutableStateOf(false) }
                         var selectedLang by remember { mutableStateOf(prefsManager.getAppLanguage()) }

app/src/main/res/values-es/strings.xml

@@ -771,6 +771,7 @@
     <string name="language_english">Inglés</string>
     <string name="language_german">Alemán</string>
     <string name="language_spanish">Español</string>
+    <string name="language_simplified_chinese">Chino Simplificado</string>
     <string name="settings_language_restart_message">Idioma guardado. Por favor reinicia la app para aplicar cambios.</string>
 
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