getWeekday static method

String getWeekday(DateTime? dateTime, { String languageCode = 'en', bool short = false, })

获取指定日期的星期名称

dateTime 待查询的日期 languageCode 语言代码，支持 'zh' (中文) 和 'en' (英文)，默认 'en' short 是否返回简称（如 '周一' 或 'Mon'），默认 false

Implementation

static String getWeekday(
  DateTime? dateTime, {
  String languageCode = 'en',
  bool short = false,
}) {
  if (dateTime == null) return "";
  String weekday = "";
  switch (dateTime.weekday) {
    case 1:
      weekday = languageCode == 'zh' ? '星期一' : 'Monday';
      break;
    case 2:
      weekday = languageCode == 'zh' ? '星期二' : 'Tuesday';
      break;
    case 3:
      weekday = languageCode == 'zh' ? '星期三' : 'Wednesday';
      break;
    case 4:
      weekday = languageCode == 'zh' ? '星期四' : 'Thursday';
      break;
    case 5:
      weekday = languageCode == 'zh' ? '星期五' : 'Friday';
      break;
    case 6:
      weekday = languageCode == 'zh' ? '星期六' : 'Saturday';
      break;
    case 7:
      weekday = languageCode == 'zh' ? '星期日' : 'Sunday';
      break;
    default:
      break;
  }
  return languageCode == 'zh'
      ? (short ? weekday.replaceAll('星期', '周') : weekday)
      : weekday.substring(0, short ? 3 : weekday.length);
}