changeLanguage method

void changeLanguage(
  1. String languageName,
  2. dynamic onSuccess(
    1. Locale,
    2. LanguageVo
    ), {
  3. LanguageVo? def,
})

切换语言，如果是跟随系统，多语言下需要手动设置显示文案

Implementation

void changeLanguage(
    String languageName, Function(Locale, LanguageVo) onSuccess,
    {LanguageVo? def}) {
  LanguageVo? languageVo = _langMap[languageName];
  if (languageVo == null) {
    if (def == null) {
      languageVo = LanguageVo.toSystem();
    } else {
      languageVo = def;
    }
  }
  LanguageVo lang = languageVo;
  Locale locale = Locale(lang.languageCode, lang.countryCode);
  onSuccess.call(locale, lang);
  _langVo = lang;
  KSpUtils.putT(_langKey, lang, (value) => lang.toJson());
}