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Commit baca07f

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orestesgaolinorestesgaolin
committed
Very crude implementation of tickets check
1 parent 40d9470 commit baca07f

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2 files changed

+202
-16
lines changed

2 files changed

+202
-16
lines changed

‎lib/ticket_check/scan_party_page.dart‎

Lines changed: 182 additions & 0 deletions
Original file line numberDiff line numberDiff line change
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import 'package:cloud_firestore/cloud_firestore.dart';
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import 'package:conferenceapp/common/logger.dart';
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import 'package:fast_qr_reader_view/fast_qr_reader_view.dart';
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import 'package:flutter/material.dart';
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import 'package:vibration/vibration.dart';
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class ScanPartyPage extends StatefulWidget {
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final List<QrCameraDescription> cameras;
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const ScanPartyPage({Key key, this.cameras}) : super(key: key);
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@override
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_ScanPartyPageState createState() => _ScanPartyPageState();
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}
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class _ScanPartyPageState extends State<ScanPartyPage> {
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QRReaderController controller;
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bool scanning = true;
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final collection = Firestore.instance.collection('party');
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@override
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void initState() {
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super.initState();
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onNewCameraSelected(widget.cameras[0]);
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: Text('Ticket scanning at the party'),
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),
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body: SafeArea(
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child: Stack(
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children: <Widget>[
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StreamBuilder<QuerySnapshot>(
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stream: collection.snapshots(),
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builder: (context, snapshot) {
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if (snapshot.hasData) {
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final List array = snapshot.data.documents;
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final length = array.length;
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return Positioned(
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top: 0,
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left: 0,
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right: 0,
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child: Container(
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color: Colors.black45,
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child: Text(
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'$length',
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style: TextStyle(
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fontSize: 30,
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color: Colors.white,
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),
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textAlign: TextAlign.center,
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),
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),
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);
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}
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return Container();
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},
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),
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Center(
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child: _cameraPreviewWidget(),
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),
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if (!scanning)
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Positioned(
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bottom: 0,
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left: 0,
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right: 0,
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child: Padding(
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padding: const EdgeInsets.all(8.0),
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child: RaisedButton(
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onPressed: startScanning,
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child: Text('Scan again'),
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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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Widget _cameraPreviewWidget() {
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if (controller == null || !controller.value.isInitialized) {
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return const Text(
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'No camera selected',
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style: const TextStyle(
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color: Colors.white,
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fontSize: 24.0,
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fontWeight: FontWeight.w900,
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),
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);
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} else {
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return new AspectRatio(
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aspectRatio: controller.value.aspectRatio,
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child: new QRReaderPreview(controller),
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);
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}
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}
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void onNewCameraSelected(QrCameraDescription cameraDescription) async {
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if (controller != null) {
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await controller.dispose();
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}
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controller = new QRReaderController(
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cameraDescription,
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ResolutionPreset.low,
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[
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CodeFormat.qr,
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CodeFormat.pdf417,
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],
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onCodeRead,
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);
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// If the controller is updated then update the UI.
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controller.addListener(() {
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if (mounted) setState(() {});
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if (controller.value.hasError) {
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showInSnackBar('Camera error ${controller.value.errorDescription}');
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}
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});
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try {
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await controller.initialize();
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} on QRReaderException catch (e) {
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logger.errorException(e.description);
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showInSnackBar('Error: ${e.code}\n${e.description}');
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}
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if (mounted) {
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setState(() {});
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controller.startScanning();
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}
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}
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void onCodeRead(dynamic value) {
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logger.info("Stopping scanning, value detected: $value");
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Vibration.vibrate(duration: 300);
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// setState(() {
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// scanning = false;
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// });
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try {
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final values = value.toString().split(' ');
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final id = values[0];
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collection.document('$id').setData(
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{
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'updated': Timestamp.now(),
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'orderId': values[1],
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'ticketId': values[2],
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},
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);
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// controller.stopScanning();
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} catch (e, s) {
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logger.errorException(e, s);
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}
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}
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void startScanning() {
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logger.info("Starting scanning");
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try {
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if (scanning == false) controller.stopScanning();
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} catch (e) {
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logger.errorException(e);
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}
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try {
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controller.startScanning();
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setState(() {
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scanning = true;
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});
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} catch (e) {
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logger.errorException(e);
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}
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}
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void showInSnackBar(String message) {
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Scaffold.of(context).showSnackBar(new SnackBar(
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content: new Text(message),
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behavior: SnackBarBehavior.floating,
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));
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}
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}

‎lib/ticket_check/ticket_check_page.dart‎

Lines changed: 20 additions & 16 deletions
Original file line numberDiff line numberDiff line change
@@ -1,17 +1,10 @@
1-
import 'dart:convert';
2-
3-
import 'package:cloud_firestore/cloud_firestore.dart';
41
import 'package:conferenceapp/common/logger.dart';
5-
import 'package:conferenceapp/profile/auth_repository.dart';
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import 'package:conferenceapp/ticket_check/bloc/bloc.dart';
7-
import 'package:conferenceapp/ticket_check/tickets_list.dart';
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import 'package:conferenceapp/ticket_check/users_list.dart';
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import 'package:flutter/material.dart';
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import 'package:fast_qr_reader_view/fast_qr_reader_view.dart';
11-
import 'package:flutter_bloc/flutter_bloc.dart';
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import 'package:intl/intl.dart';
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import 'package:line_icons/line_icons.dart';
146

7+
import 'scan_party_page.dart';
158
import 'scan_ticket_page.dart';
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class TicketCheckPage extends StatefulWidget {
@@ -93,21 +86,32 @@ class _TicketCheckPageState extends State<TicketCheckPage> {
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}
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},
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),
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RaisedButton(
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child: Padding(
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padding: const EdgeInsets.all(8.0),
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child: Text(
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'Wydawanie koszulek',
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),
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),
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),
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RaisedButton(
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child: Padding(
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padding: const EdgeInsets.all(8.0),
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child: Text(
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'Kontrola na imprezie',
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),
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),
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onPressed: () async {
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try {
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final cameras = await availableCameras();
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final permission = await checkCameraPermission();
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if (permission != PermissionStatus.granted) {
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await requestCameraPermission();
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}
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await Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => ScanPartyPage(
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cameras: cameras,
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),
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),
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);
111+
} on QRReaderException catch (e) {
112+
logError(e.code, e.description);
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}
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},
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),
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RaisedButton(
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child: Text('Przeglądaj sprawdzone'),

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