init

lib/pages/page1/qr.dart

@@ -0,0 +1,96 @@
+import 'package:flutter/material.dart';
+import 'package:qr_code_scanner/qr_code_scanner.dart';
+import 'dart:io';
+
+import 'package:qr_flutter/qr_flutter.dart';
+class QrWidget extends StatefulWidget {
+  const QrWidget({Key? key}) : super(key: key);
+
+  @override
+  State<QrWidget> createState() => _QrWidgetState();
+}
+
+class _QrWidgetState extends State<QrWidget> {
+  final GlobalKey qrKey = GlobalKey(debugLabel: 'QR');
+  Barcode? result;
+  QRViewController? controller;
+
+  @override
+  initState(){
+
+  }
+
+  @override
+  void reassemble() {
+    super.reassemble();
+    // if (Platform.isAndroid) {
+    //   controller!.pauseCamera();
+    // } else if (Platform.isIOS) {
+    //   controller!.resumeCamera();
+    // }
+  }
+
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text('QR'),
+        centerTitle: true,
+        elevation: 0.0,
+      ),
+      body: Column(
+        children: <Widget>[
+          Row(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              Container(
+                width: 300,
+                height: 300,
+                child: QRView(
+                  key: qrKey,
+                  onQRViewCreated: _onQRViewCreated,
+                ),
+              ),
+              Container(
+                width: 300,
+                height: 300,
+                child: QrImage(
+                  data: "1234567890",
+                  version: QrVersions.auto,
+                  size: 200.0,
+                ),
+              ),
+            ],
+          ),
+          Expanded(
+            flex: 1,
+            child: Center(
+              child: (result != null)
+                  ? Text(
+                  'Barcode Type:Data: ${result!.code}')
+                  : Text('Scan a code'),
+            ),
+          )
+        ],
+      ),
+    );
+  }
+
+  void _onQRViewCreated(QRViewController controller) {
+    this.controller = controller;
+    controller.scannedDataStream.listen((scanData) {
+      setState(() {
+        result = scanData;
+        print(result);
+      });
+    });
+    controller.resumeCamera();
+  }
+
+  @override
+  void dispose() {
+    controller?.dispose();
+    super.dispose();
+  }
+}