英文:
Flutter shorten a string
问题
String? time = "2023-02-21 14:50:40";
结果:
String? time = "14:50";
我尝试使用正则表达式但失败了。
英文:
I have a string showing the date and time, but I only want to see the hour and minute. how do i do this with flutter.Sorry if there are other questions that I missed.
String? time = "2023-02-21 14:50:40";
Result:
String? time = "14:50";
I tried to try with regex but failed
答案1
得分: 2
我认为最快的方法是使用内置的 DateTime.parse()：
final dt = DateTime.parse('2023-02-21 14:50:40');
final result = '${dt.hour}:${dt.minute}';
英文:
I think the quickest way is using the built-in DateTime.parse():
final dt = DateTime.parse('2023-02-21 14:50:40');
final result = '${dt.hour}:${dt.minute}';
答案2
得分: 0
import 'package:intl/intl.dart';
void main() {
String? time = "2023-02-21 14:50:40";
DateTime tempDate = DateFormat("yyyy-MM-dd hh:mm:ss").parse(time);
String? hourTime = tempDate.hour.toString();
String? minuteTime = tempDate.minute.toString();
print(hourTime); //14
print(minuteTime); //50
}
英文:
import 'package:intl/intl.dart';
void main() {
String? time = "2023-02-21 14:50:40";
DateTime tempDate = DateFormat("yyyy-MM-dd hh:mm:ss").parse(time);
String? hourTime = tempDate.hour.toString();
String? minuteTime = tempDate.minute.toString();
print(hourTime); //14
print(minuteTime); //50
}
You can use intl package for convert string to datetime.
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