在Flutter中,将DateTime对象转换为字符串是一个常见的操作,通常用于显示日期和时间。以下是如何实现这一转换的详细步骤和示例代码: 获取当前的DateTime对象: 你可以使用DateTime.now()方法来获取当前的日期和时间。 dart DateTime dateTime = DateTime.now(); 导入Flutter的intl包以使用DateFormat类: 为了进行更复杂的...
Learn the process of converting Flutter string to datetime. Also, know the format of the DateTime object, the string structure, and the conversion process.
class DateTimeDemo extends StatefulWidget { @override _DateTimeDemoState createState() => _DateTimeDemoState(); } class _DateTimeDemoState extends State<DateTimeDemo> { DateTime selectedDate = DateTime.now(); TimeOfDay selectedTime = TimeOfDay(hour: 9, minute: 30); Future<void> _selectDate() a...
('Local Time: $localTime'); // 将本地时间转换为 UTC DateTime utcTime = localTime.toUtc(); print('UTC Time: $utcTime'); // 如果需要格式化输出,可以使用 intl 包 var formatter = DateFormat('yyyy-MM-dd HH:mm:ss'); String formattedUtcTime = formatter.format(utcTime); print('...
dateFormat(time,fmt,utc){vartheTime=DateTime.parse(time);if(utc){theTime=theTime.toUtc();}varo={"M+":theTime.month+1,//月份"d+":theTime.day,//日"h+":theTime.hour,//小时"m+":theTime.minute,//分"s+":theTime.second,//秒"q+":(theTime.month+3)/3,//季度"S":theTime.mi...
; DateTime dateTime = DateTime.now(); String dateString = DateFormat('dd-MM-yyyy - kk:mm').format(dateTime); double latitude = _fetchedUserLocation.latitude.toDouble(); double longitude = _fetchedUserLocation.longitude.toDouble(); String speed = _fetchedUserLocation.speed.toString(); Map<...
* */staticStringgetTimeStampToStringDate(int time,{Stringformat=y_M_d}){vardateFormat=DateFormat(format);vardateTime=DateTime.fromMillisecondsSinceEpoch(time);returndateFormat.format(dateTime);} 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
{/// 获取当前时间戳/// [prefix]需要传入一个前缀信息/// 返回一个字符串类型的前缀信息:时间戳StringgetCurrentTime(String prefix){DateTime now=DateTime.now();varformatter=DateFormat('yy-mm-dd H:m:s');String nowTime=formatter.format(now);return'$prefix $nowTime';}/// 有状态类返回组件信息...
all(10), height: 150, child: CupertinoDatePicker( mode: mode, initialDateTime: DateTime.now(), minimumYear: 2018, maximumYear: 2030, use24hFormat: false, minuteInterval: 1, backgroundColor: CupertinoColors.white, onDateTimeChanged: (date) { print(date); setState(() => _date = date); ...
now(); ///格式化时间 import 'package:intl/intl.dart'; ///需要添加 intl 依赖 String formatTime = DateFormat("HH:mm:ss").format(dateTime); ///发射更新数据 yield formatTime; } } 3 BlocBuilder BlocBuilder与StreamBuilder的作用一样,用来消费事件结果,就是显示数据结果,它的构建构建如下: class ...