115 lines
2.5 KiB
Dart
115 lines
2.5 KiB
Dart
import 'dart:async';
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import 'package:app/utils/time.dart';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'content_view.dart';
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import '../viewmodel/students_view_model.dart';
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class StatusView extends StatefulWidget {
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const StatusView({super.key});
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@override
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State<StatusView> createState() => _StatusViewState();
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}
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class _StatusViewState extends State<StatusView> {
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///房间状态
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RoomStatus status = RoomStatus.loading;
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///剩余秒
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int _seconds = 0;
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Timer? _timer;
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@override
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void initState() {
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super.initState();
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_init();
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}
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@override
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void dispose() {
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super.dispose();
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_timer?.cancel();
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_timer = null;
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}
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void _init() {
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final vm = context.read<StudentsViewModel>();
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//如果房间可以开始
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if (vm.canEnterRoom) {
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status = RoomStatus.start;
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} else {
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status = RoomStatus.waiting;
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startCountDown();
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}
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}
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///开始倒计时
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void startCountDown() {
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final vm = context.read<StudentsViewModel>();
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//当前时间
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DateTime now = DateTime.now();
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//远端时间
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setState(() {
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_seconds = vm.startTime.difference(now).inSeconds;
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});
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_timer = Timer.periodic(Duration(seconds: 1), (timer) {
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setState(() {
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_seconds--;
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});
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if (_seconds <= 0) {
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_timer?.cancel();
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_timer = null;
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setState(() {
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status = RoomStatus.start;
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});
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}
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});
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}
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///开启自习室
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void openRoom() {
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final vm = context.read<StudentsViewModel>();
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vm.toggleRoom(isOpen: true);
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}
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@override
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Widget build(BuildContext context) {
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if (status == RoomStatus.waiting) {
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return Align(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Text(
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"未到开播时间，到点后自动开播",
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style: TextStyle(color: Colors.white),
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),
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Container(
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margin: EdgeInsets.symmetric(vertical: 10),
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child: Text(
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formatSeconds(_seconds),
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style: TextStyle(
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color: Colors.white,
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fontSize: 26,
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fontWeight: FontWeight.bold,
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),
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),
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),
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],
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),
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);
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} else if (status == RoomStatus.start) {
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return ContentView();
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}
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return SizedBox();
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}
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}
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enum RoomStatus {
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loading, // 加载中
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waiting, //房间倒计时等待中
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start, //房间开始中
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}
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