81 lines
1.7 KiB
Dart
81 lines
1.7 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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class WaitingStart extends StatefulWidget {
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const WaitingStart({super.key});
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@override
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State<WaitingStart> createState() => _WaitingStartState();
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}
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class _WaitingStartState extends State<WaitingStart> {
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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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startCountDown();
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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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///开始倒计时
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void startCountDown() {
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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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DateTime remote = DateTime.parse("2025-11-19 17:10:00".replaceFirst(' ', 'T'));
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setState(() {
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_seconds = remote.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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_start();
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}
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});
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}
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///倒计时结束开始
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void _start() {}
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@override
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Widget build(BuildContext context) {
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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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}
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}
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