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Using new qr code scanner - qr_code_scanner

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This commit is contained in:
Oliver Walters
2020-05-26 23:02:19 +10:00
parent aad616aea1
commit a4390d16d9
8 changed files with 211 additions and 94 deletions
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243
lib/barcode.dart
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@ -3,6 +3,10 @@ import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
//import 'package:qr_utils/qr_utils.dart';
//import 'package:flutter_barcode_scanner/flutter_barcode_scanner.dart';
//import 'package:barcode_scan/barcode_scan.dart';
import 'package:qr_code_scanner/qr_code_scanner.dart';
import 'package:InvenTree/inventree/stock.dart';
import 'package:InvenTree/inventree/part.dart';
@ -16,86 +20,179 @@ import 'package:InvenTree/widget/stock_detail.dart';
import 'dart:convert';
class InvenTreeQRView extends StatefulWidget {
InvenTreeQRView({Key key}) : super(key: key);
@override
State<StatefulWidget> createState() => _QRViewState();
}
class _QRViewState extends State<InvenTreeQRView> {
QRViewController _controller;
BuildContext context;
_QRViewState() : super();
final GlobalKey qrKey = GlobalKey(debugLabel: 'QR');
Future<void> processBarcode(String barcode) async {
if (barcode == null || barcode.isEmpty) {
return;
}
print("Scanned: ${barcode}");
showProgressDialog(context, "Querying server", "Sending barcode data to server");
InvenTreeAPI().post("barcode/", body: {"barcode": barcode}).then((var response) {
hideProgressDialog(context);
print("Response:");
print(response.body);
}).timeout(
Duration(seconds: 5)
).catchError((error) {
hideProgressDialog(context);
showErrorDialog(context, "Error", error.toString());
return;
});
}
void _onViewCreated(QRViewController controller) {
_controller = controller;
controller.scannedDataStream.listen((scandata) {
processBarcode(scandata);
});
}
@override
void dispose() {
_controller.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
// Save the context for later on!
this.context = context;
return Scaffold(
body: Column(
children: <Widget>[
Expanded(
flex: 4,
child: QRView(
key: qrKey,
onQRViewCreated: _onViewCreated,
overlay: QrScannerOverlayShape(
borderColor: Colors.red,
borderRadius: 10,
borderLength: 30,
borderWidth: 10,
cutOutSize: 300,
),
)
)
],
)
);
}
}
Future<void> scanQrCode(BuildContext context) async {
Navigator.push(context, MaterialPageRoute(builder: (context) => InvenTreeQRView()));
return;
/*
QrUtils.scanQR.then((String barcode) {
print("Scanning");
String barcode = await FlutterBarcodeScanner.scanBarcode("#F00", "Cancel", false, ScanMode.DEFAULT);
print("and, DONE");
if (barcode == null || barcode.isEmpty) {
return;
}
print("Scanned: $barcode");
print("Scanned: $barcode");
showProgressDialog(context, "Querying Server", "Sending barcode data to server");
/*
* POST the scanned barcode data to the server.
* It is the responsibility of the server to validate and sanitize the barcode data,
* and return a "common" response that we know how to deal with.
*/
InvenTreeAPI().post("barcode/", body: {"barcode": barcode}).then((var response) {
hideProgressDialog(context);
if (response.statusCode != 200) {
showDialog(
context: context,
child: new SimpleDialog(
title: Text("Server Error"),
children: <Widget>[
ListTile(
title: Text("Error ${response.statusCode}"),
subtitle: Text("${response.body.toString().split("\n").first}"),
)
],
),
);
return;
}
final Map<String, dynamic> body = json.decode(response.body);
// TODO - Handle potential error decoding response
print("Barcode response:");
print(body.toString());
if (body.containsKey('error')) {
showDialog(
context: context,
child: new SimpleDialog(
title: Text("Barcode Error"),
children: <Widget>[
ListTile(
title: Text("${body['error']}"),
subtitle: Text("Plugin: ${body['plugin'] ?? '<no plugin information>'}"),
)
],
)
);
} else if (body.containsKey('success')) {
// Decode the barcode!
// Ideally, the server has returned unto us something sensible...
_handleBarcode(context, body);
} else {
showDialog(
context: context,
child: new SimpleDialog(
title: Text("Unknown response"),
children: <Widget>[
ListTile(
title: Text("Response data"),
subtitle: Text("${body.toString()}"),
)
],
)
);
}
print("body: ${body.toString()}");
});
});
showProgressDialog(context, "Querying Server", "Sending barcode data to server");
*/
String barcode = null;
/*
* POST the scanned barcode data to the server.
* It is the responsibility of the server to validate and sanitize the barcode data,
* and return a "common" response that we know how to deal with.
*/
InvenTreeAPI().post("barcode/", body: {"barcode": barcode}).then((var response) {
hideProgressDialog(context);
if (response.statusCode != 200) {
showDialog(
context: context,
child: new SimpleDialog(
title: Text("Server Error"),
children: <Widget>[
ListTile(
title: Text("Error ${response.statusCode}"),
subtitle: Text("${response.body.toString().split("\n").first}"),
)
],
),
);
return;
}
final Map<String, dynamic> body = json.decode(response.body);
// TODO - Handle potential error decoding response
print("Barcode response:");
print(body.toString());
if (body.containsKey('error')) {
showDialog(
context: context,
child: new SimpleDialog(
title: Text("Barcode Error"),
children: <Widget>[
ListTile(
title: Text("${body['error']}"),
subtitle: Text("Plugin: ${body['plugin'] ?? '<no plugin information>'}"),
)
],
)
);
} else if (body.containsKey('success')) {
// Decode the barcode!
// Ideally, the server has returned unto us something sensible...
_handleBarcode(context, body);
} else {
showDialog(
context: context,
child: new SimpleDialog(
title: Text("Unknown response"),
children: <Widget>[
ListTile(
title: Text("Response data"),
subtitle: Text("${body.toString()}"),
)
],
)
);
}
print("body: ${body.toString()}");
});
}
void _handleBarcode(BuildContext context, Map<String, dynamic> data) {