setNavigationLanguage method

void setNavigationLanguage(
  1. String lang
)

Sets the navigation language for API calls and TTS. Pass 'th' for Thai, 'en' for English.

Implementation

void setNavigationLanguage(String lang) {
  _navigationLanguage = lang;
  // Also update TTS locale to match
  final ttsLocale = lang == 'en' ? 'en-US' : 'th-TH';
  _flutterTts.setLanguage(ttsLocale);
}