fetchLanguages method
获取支持的语言列表
Implementation
Future<List<Language>> fetchLanguages() async {
try {
final result = await _channel.invokeMethod<List<dynamic>>('fetchLanguages');
return result?.map((e) => Language.fromMap(e as Map<dynamic, dynamic>)).toList() ?? [];
} on PlatformException catch (e) {
throw Exception('获取语言列表失败: ${e.message}');
}
}