131 lines
3.7 KiB
Dart
131 lines
3.7 KiB
Dart
import 'dart:collection';
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import 'package:fast_network_navigation/modules/landmark_card.dart';
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import 'package:fast_network_navigation/structs/landmark.dart';
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import 'package:fast_network_navigation/structs/trip.dart';
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import 'package:flutter/material.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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class LandmarksOverview extends StatefulWidget {
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final Future<Trip>? trip;
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const LandmarksOverview({super.key, this.trip});
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@override
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State<LandmarksOverview> createState() => _LandmarksOverviewState();
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}
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class _LandmarksOverviewState extends State<LandmarksOverview> {
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// final Future<List<Landmark>> _landmarks = fetchLandmarks();
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@override
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Widget build(BuildContext context) {
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final Future<LinkedList<Landmark>> _landmarks = getLandmarks(widget.trip);
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return DefaultTextStyle(
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style: Theme.of(context).textTheme.displayMedium!,
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textAlign: TextAlign.center,
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child: FutureBuilder<LinkedList<Landmark>>(
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future: _landmarks,
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builder: (BuildContext context, AsyncSnapshot<LinkedList<Landmark>> snapshot) {
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List<Widget> children;
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if (snapshot.hasData) {
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children = [landmarksWithSteps(snapshot.data!), saveButton()];
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} else if (snapshot.hasError) {
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children = <Widget>[
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const Icon(
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Icons.error_outline,
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color: Colors.red,
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size: 60,
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),
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Padding(
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padding: const EdgeInsets.only(top: 16),
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child: Text('Error: ${snapshot.error}', style: TextStyle(fontSize: 12)),
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),
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];
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} else {
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children = [Center(child: CircularProgressIndicator())];
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}
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: children,
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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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Widget saveButton() => ElevatedButton(
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onPressed: () async {
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Trip? trip = await widget.trip;
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SharedPreferences prefs = await SharedPreferences.getInstance();
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trip?.toPrefs(prefs);
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},
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child: const Text('Save'),
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);
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}
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Widget landmarksWithSteps(LinkedList<Landmark> landmarks) {
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List<Widget> children = [];
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for (Landmark landmark in landmarks) {
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children.add(LandmarkCard(landmark));
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if (landmark.next != null) {
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Widget step = stepBetweenLandmarks(landmark, landmark.next!);
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children.add(step);
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}
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}
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return Column(
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children: children
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);
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}
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Widget stepBetweenLandmarks(Landmark before, Landmark after) {
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// This is a simple widget that draws a line between landmark-cards
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// It's a vertical dotted line
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// Next to the line is the icon for the mode of transport (walking for now) and the estimated time
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// There is also a button to open the navigation instructions as a new intent
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return Container(
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margin: EdgeInsets.all(10),
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padding: EdgeInsets.all(10),
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decoration: BoxDecoration(
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border: Border(
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left: BorderSide(width: 3.0, color: Colors.black),
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),
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// gradient: LinearGradient(
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// begin: Alignment.topLeft,
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// end: Alignment.bottomRight,
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// colors: [Colors.grey, Colors.white, Colors.white],
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// ),
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),
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child: Row(
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children: [
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Column(
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children: [
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Icon(Icons.directions_walk),
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Text("5 min", style: TextStyle(fontSize: 10)),
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],
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),
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Spacer(),
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ElevatedButton(
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onPressed: () {
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// Open navigation instructions
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},
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child: Text("Navigate"),
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),
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],
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),
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);
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}
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Future<LinkedList<Landmark>> getLandmarks (Future<Trip>? trip) async {
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Trip tripf = await trip!;
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return tripf.landmarks;
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}
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