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void _timeFunc(time){
var _newDate = DateTime.now();
const period = const Duration(seconds: 1);
print(time);
var _diffDate = DateTime.parse(time.toString());
_timerIndex = Timer.periodic(period, (timer) {
//到时回调
_diffDate =_diffDate.subtract(Duration(seconds: 1));
// count++;
if (_diffDate.difference(_newDate).inSeconds <= 0) {
//取消定时器，避免无限回调
timer.cancel();
timer = null;
}
// print();
var _surplus = _diffDate.difference(_newDate);
int _day = (_surplus.inSeconds ~/ 3600) ~/ 24;
int hour = (_surplus.inSeconds ~/ 3600) % 24;
int minute = _surplus.inSeconds % 3600 ~/ 60;
int second = _surplus.inSeconds % 60;
// formatTime(hour) + ":" + formatTime(minute) + ":" + formatTime(second);
setState(() {
_day1 = _day.toString()??'0';
_hour1 = hour.toString()??'0';
_minute1 = minute.toString()??'0';
_second1 = second.toString()??'0';
// _text = _diffDate.weekday.toString()+'' +_diffDate.hour.toString()+':' + _diffDate.minute.toString() +':'+ _diffDate.second.toString();
});
// debugPrint(_text);
});
}
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