53 lines
1.2 KiB
Dart
53 lines
1.2 KiB
Dart
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import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'package:fcs/model/main_model.dart';
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class OfflineRedirect extends StatefulWidget {
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final Widget child;
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OfflineRedirect({@required this.child});
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@override
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_OfflineRedirectState createState() => _OfflineRedirectState();
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}
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class _OfflineRedirectState extends State<OfflineRedirect> {
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Timer offlineTimer;
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@override
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void initState() {
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super.initState();
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}
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@override
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void didChangeDependencies() {
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_startOfflineTimer();
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super.didChangeDependencies();
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}
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_startOfflineTimer() async {
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if (offlineTimer!=null && offlineTimer.isActive) return;
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var _duration = new Duration(milliseconds: 500);
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this.offlineTimer = new Timer.periodic(_duration, offlineNav);
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}
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Future<void> offlineNav(Timer timer) async {
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MainModel mainModel = Provider.of<MainModel>(context, listen: false);
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if (!mainModel.isOnline) {
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timer.cancel();
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Navigator.pushNamedAndRemoveUntil(context, "/", (r) => false);
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}
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}
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void dispose() {
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offlineTimer.cancel();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return widget.child;
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}
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}
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