Flutter -检查当前时间是否在给定的每小时范围内

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    DateTime currentTime = DateTime.now();
    int currentHour = currentTime.hour;

    // 定义给定的每小时范围
    int startHour = 9;
    int endHour = 17;

    if (currentHour >= startHour && currentHour <= endHour) {
      // 当前时间在范围内
      return MaterialApp(
        home: Scaffold(
          appBar: AppBar(
            title: Text('时间范围内'),
          ),
          body: Center(
            child: Text(
              '当前时间在范围内',
              style: TextStyle(fontSize: 24),
            ),
          ),
        ),
      );
    } else {
      // 当前时间不在范围内
      return MaterialApp(
        home: Scaffold(
          appBar: AppBar(
            title: Text('时间范围外'),
          ),
          body: Center(
            child: Text(
              '当前时间不在范围内',
              style: TextStyle(fontSize: 24),
            ),
          ),
        ),
      );
    }
  }
}