timeStampToTimeStringYMD static method
年-月-日
Implementation
static String timeStampToTimeStringYMD(int stamp) {
DateTime date = DateTime.fromMillisecondsSinceEpoch(stamp * 1000);
// print("${date.year},${date.month},${date.day},${date.hour},${date.minute}");
return "${date.year}-${date.month}-${date.day}";
}