App_Flutter/lib/view/component/change_time.dart

import 'dart:async';

import 'package:fast/constants.dart';
import 'package:fast/utils/api.dart';
import 'package:fast/utils/global.dart';
import 'package:fast/utils/http_utils.dart';
import 'package:fast/utils/size_fit.dart';
import 'package:flutter/material.dart';
import 'package:flutter_datetime_picker/flutter_datetime_picker.dart';
import 'package:get/get.dart';
import 'package:intl/intl.dart';

class ChangeTime extends StatefulWidget {
  List<dynamic> list;
  var callback;
  ChangeTime({Key? key, required this.list,required this.callback}) : super(key: key);

  @override
  State<ChangeTime> createState() => _ChangeTimeState();
}

class _ChangeTimeState extends State<ChangeTime>
    with SingleTickerProviderStateMixin {
  late AnimationController controller;
  late Animation animation;

  late Timer timerUpdate;
  String strSysTime = '';

  @override
  void initState() {
    controller = AnimationController(
        vsync: this, duration: const Duration(milliseconds: 300));
    controller.addListener(() {
      setState(() {});
    });
    animation = Tween(begin: 0.0, end: 1.0).animate(
        CurvedAnimation(parent: controller, curve: const Interval(0.0, 1.0)));

    controller.forward();
    showSystemTime();
    super.initState();
  }

  @override
  void dispose() {
    controller.dispose();
    timerUpdate.cancel();
    super.dispose();
  }

  close() {
    controller.reverse();
    Timer(const Duration(milliseconds: 300), () {
      Navigator.of(context).pop();
    });
  }

  void showSystemTime() {
    timerUpdate = Timer.periodic(const Duration(seconds: 1), (e) {
      int milliseconds = DateTime.now().millisecondsSinceEpoch;
      milliseconds = milliseconds + Global().timeSeconds * 1000;
      DateTime dt = DateTime.fromMillisecondsSinceEpoch(milliseconds);
      if (mounted) {
        setState(() {
          strSysTime = DateFormat('yyyy-MM-dd HH:mm:ss').format(dt);
        });
      }
    });
  }

  DateTime serverTime() {
    int milliseconds = DateTime.now().millisecondsSinceEpoch;
    milliseconds = milliseconds + Global().timeSeconds * 1000;
    return DateTime.fromMillisecondsSinceEpoch(milliseconds);
  }

  Future updateTimes(seconds) async {
    Map<String, dynamic> data =
        await HttpUtils.get(Api.fixTime, params: {"fix": seconds});
    widget.callback();
  }

  showPicker(int seconds) {
    DateTime dt = DateTime.fromMillisecondsSinceEpoch(seconds*1000);
    DatePicker.showDatePicker(context,
        showTitleActions: true,
        currentTime: dt,
        theme: const DatePickerTheme(
            headerColor: Colors.orange,
            backgroundColor: Colors.white,
            itemStyle: TextStyle(
                color: Colors.black, fontWeight: FontWeight.bold, fontSize: 18),
            doneStyle: TextStyle(color: Colors.white, fontSize: 16)),
        onConfirm: (date) {
      DatePicker.showTimePicker(context,
          showTitleActions: true,
          currentTime: dt,
          theme: const DatePickerTheme(
              headerColor: Colors.orange,
              backgroundColor: Colors.white,
              itemStyle: TextStyle(
                  color: Colors.black,
                  fontWeight: FontWeight.bold,
                  fontSize: 18),
              doneStyle: TextStyle(color: Colors.white, fontSize: 16)),
          onConfirm: (date2) {
        DateTime dt = DateTime.parse(date.year.toString() +
            '-' +
            (date.month.toString()).padLeft(2, '0') +
            '-' +
            (date.day.toString()).padLeft(2, '0') +
            'T' +
            (date2.hour.toString()).padLeft(2, '0') +
            ':' +
            (date2.minute.toString()).padLeft(2, '0') +
            ':' +
            (date2.second.toString()).padLeft(2, '0'));
        int seconds = (dt.millisecondsSinceEpoch -
                DateTime.now().millisecondsSinceEpoch) ~/
            1000;
        updateTimes(seconds);
      });
    });
  }

  @override
  Widget build(BuildContext context) {
    SizeFit.initialize(context);
    double screenHeight = MediaQuery.of(context).size.height;
    return Stack(
      children: [
        GestureDetector(
          onTap: () {
            close();
          },
          child: Container(
            width: 375.px,
            height: screenHeight * 0.2,
            color: Colors.transparent,
          ),
        ),
        Positioned(
            bottom: -(1 - animation.value) * screenHeight * 0.8,
            child: Container(
              width: 375.px,
              padding: EdgeInsets.all(20.px),
              height: screenHeight * 0.8,
              decoration: BoxDecoration(
                  color: const Color(0x99000000),
                  borderRadius: BorderRadius.only(
                      topLeft: Radius.circular(16.px),
                      topRight: Radius.circular(16.px))),
              child: Column(
                children: [
                  Row(
                    children: [
                      SizedBox(
                        width: 160.px,
                        child: Text(
                          '系统时间',
                          style:
                              TextStyle(color: Colors.white, fontSize: 12.px),
                        ),
                      ),
                      SizedBox(
                        width: 148.px,
                        child: Text(
                          strSysTime,
                          style:
                              TextStyle(color: Colors.white, fontSize: 12.px),
                        ),
                      ),
                      GestureDetector(
                        onTap: () {
                          updateTimes(0);
                        },
                        child: Text('重置',
                            style: TextStyle(
                                color: Colors.white, fontSize: 12.px)),
                      )
                    ],
                  ),
                  SizedBox(
                    height: 20.px,
                  ),
                  Expanded(
                      child: SingleChildScrollView(
                    child: Column(
                      mainAxisAlignment: MainAxisAlignment.start,
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        ...List<Widget>.generate(widget.list.length, (i) {
                          return Column(
                            mainAxisAlignment: MainAxisAlignment.start,
                            crossAxisAlignment: CrossAxisAlignment.start,
                            children: [
                              Container(
                                width: 334.px,
                                padding: EdgeInsets.only(bottom: 10.px),
                                decoration: BoxDecoration(
                                    border: Border(
                                        bottom: BorderSide(
                                            color: const Color(0x4DFFFFFF),
                                            width: 1.px))),
                                child: Text(
                                  widget.list[i]['day'],
                                  style: TextStyle(
                                      color: kThemeColor, fontSize: 14.px),
                                ),
                              ),
                              Column(
                                children: [
                                  ...List<Widget>.generate(
                                      widget.list[i]['contents'].length,
                                      (index) {
                                    String strColor = widget.list[i]['contents']
                                        [index]['fColor'];
                                    strColor = strColor.substring(2, 10);
                                    int value = int.parse(strColor, radix: 16);
                                    return Container(
                                      width: 334.px,
                                      height: 40.px,
                                      alignment: Alignment.centerLeft,
                                      decoration: BoxDecoration(
                                          border: Border(
                                              bottom: BorderSide(
                                                  color:
                                                      const Color(0x4DFFFFFF),
                                                  width: 1.px))),
                                      child: Row(
                                        mainAxisSize: MainAxisSize.max,
                                        children: [
                                          SizedBox(
                                            width: 160.px,
                                            child: Text(
                                              widget.list[i]['contents'][index]
                                                  ['name'],
                                              style: TextStyle(
                                                  color: Color(value),
                                                  fontSize: 12.px),
                                            ),
                                          ),
                                          GestureDetector(
                                              onTap: () {
                                                int seconds = int.parse(widget
                                                            .list[i]['contents']
                                                        [index]['time']) -
                                                    (DateTime.now()
                                                            .millisecondsSinceEpoch) ~/
                                                        1000;
                                                updateTimes(seconds);
                                                // showPicker();
                                              },
                                              child: SizedBox(
                                                width: 148.px,
                                                child: Text(
                                                  widget.list[i]['contents']
                                                      [index]['timeStr'],
                                                  style: TextStyle(
                                                      color: Color(value),
                                                      fontSize: 12.px),
                                                ),
                                              )),
                                          GestureDetector(
                                              onTap: () {
                                                showPicker(int.parse(widget
                                                            .list[i]['contents']
                                                        [index]['time']));
                                              },
                                              child: Text(
                                                '选择',
                                                style: TextStyle(
                                                    color: kThemeColor,
                                                    fontSize: 12.px),
                                              ))
                                        ],
                                      ),
                                    );
                                  })
                                ],
                              )
                            ],
                          );
                        })
                      ],
                    ),
                  ))
                ],
              ),
            )),
            Positioned(
              left: 0.0,
              top: 0.2*screenHeight,
              child: GestureDetector(child: Container(width: 300.px,height: 60.px,color: Colors.transparent,),onVerticalDragStart: (details) => {
                close()
              },))
      ],
    );
  }
}