YYHome/packages/cs_widgets/lib/picker/date_picker_util.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'package:cs_resources/constants/color_constants.dart';
import 'package:shared/utils/date_time_utils.dart';
import '../utils/dark_theme_util.dart';

class DatePickerUtil {
  static void showCupertinoDatePicker({
    required Function(DateTime) onDateTimeChanged,
    DateTime? selectedDateTime,
    int minuteInterval = 1,
    DateTime? minimumDate,
    DateTime? maximumDate,
    CupertinoDatePickerMode mode = CupertinoDatePickerMode.date,
    String title = '',
    DatePickerDateOrder? dateOrder,
  }) {
   int curMillisecond = DateTime.now().millisecondsSinceEpoch; //毫秒
    selectedDateTime ??= DateTimeUtils.getDateTimeByMs(curMillisecond);  //当前选中的日期
    minimumDate ??= DateTimeUtils.getDateTimeByMs(curMillisecond - 10 * 365 * 24 * 60 * 60 * 1000);  //最小范围默认减去10年
    maximumDate ??= DateTimeUtils.getDateTimeByMs(curMillisecond + 10 * 365 * 24 * 60 * 60 * 1000); //最大范围默认加上10年

    SmartDialog.show(
      usePenetrate: false,
      tag: 'date_picker',
      maskColor: Colors.black.withOpacity(0.4),
      alignment: Alignment.bottomCenter,
      builder: (BuildContext context) {
        return Container(
          height: 280,
          decoration: BoxDecoration(
            color: DarkThemeUtil.multiColors(context, Colors.white, darkColor: ColorConstants.darkBlackItem),
            borderRadius: const BorderRadius.only(topLeft: Radius.circular(25), topRight: Radius.circular(25)),
          ),
          child: Column(
            children: [
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  CupertinoButton(
                    child: const Text(
                      'Cancel',
                      style: TextStyle(
                        fontSize: 17,
                        fontWeight: FontWeight.w500,
                        color: ColorConstants.appBlue,
                      ),
                    ),
                    onPressed: () => SmartDialog.dismiss(tag: 'date_picker'),
                  ),
                  Text(
                    title,
                    style: TextStyle(
                      fontSize: 18,
                      fontWeight: FontWeight.w500,
                      color: DarkThemeUtil.multiColors(context, const Color(0xff404A5B), darkColor: Colors.white),
                    ),
                  ),
                  CupertinoButton(
                    child: const Text(
                      'Confirm',
                      style: TextStyle(
                        fontSize: 17,
                        fontWeight: FontWeight.w500,
                        color: ColorConstants.appBlue,
                      ),
                    ),
                    onPressed: () {
                      SmartDialog.dismiss(tag: 'date_picker');
                      // 将选中的值通过回调函数传递出去
                      onDateTimeChanged(selectedDateTime!);
                    },
                  ),
                ],
              ),
              Divider(
                  color: DarkThemeUtil.multiColors(
                    context,
                    ColorConstants.dividerA6,
                    darkColor: ColorConstants.darkBlackItemDivider,
                  ),
                  height: 0.5),
              Expanded(
                child: CupertinoDatePicker(
                  mode: mode,
                  use24hFormat: true,
                  minimumDate: minimumDate,
                  maximumDate: maximumDate,
                  initialDateTime: selectedDateTime,
                  onDateTimeChanged: (date) {
                    selectedDateTime = date;
                  },
                  dateOrder: dateOrder,
                ),
              ),
            ],
          ),
        );
      },
    );
  }
}