Updated barcode check to inline check. Updated README.md.

README.md

@@ -53,9 +53,17 @@ When a QR code is recognized, the text identified will be set in 'qrText'.
 ```dart
 class _QRViewExampleState extends State<QRViewExample> {
   final GlobalKey qrKey = GlobalKey(debugLabel: 'QR');
-  var qrText = "";
+  Barcode result;
   QRViewController controller;
 
+  /// Overriding reassemble and pausing the camera
+  /// ensures us that hot reload won't give a black screen
+  @override
+  void reassemble() {
+    super.reassemble();
+    controller.pauseCamera();
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -82,7 +90,9 @@ class _QRViewExampleState extends State<QRViewExample> {
           Expanded(
             flex: 1,
             child: Center(
-              child: Text('Scan result: $qrText'),
+              child: (result != null) ?
+                        Text('Barcode Type: ${describeEnum(result.format)}   Data: ${result.code}')
+                      : Text('Scan a code'),
             ),
           )
         ],

example/README.md

@@ -41,12 +41,20 @@ class QRViewExample extends StatefulWidget {
 }
 
 class _QRViewExampleState extends State<QRViewExample> {
-  var qrText = '';
+  Barcode result;
   var flashState = flashOn;
   var cameraState = frontCamera;
   QRViewController controller;
   final GlobalKey qrKey = GlobalKey(debugLabel: 'QR');
 
+  /// Overriding reassemble and pausing the camera
+  /// ensures us that hot reload won't give a black screen
+  @override
+  void reassemble() {
+    super.reassemble();
+    controller.pauseCamera();
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -60,7 +68,10 @@ class _QRViewExampleState extends State<QRViewExample> {
               child: Column(
                 mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                 children: <Widget>[
-                  Text('This is the result of scan: $qrText'),
+                  if (result != null)
+                    Text('Barcode Type: ${describeEnum(result.format)}   Data: ${result.code}')
+                  else
+                    Text('Scan a code'),
                   Row(
                     mainAxisAlignment: MainAxisAlignment.center,
                     crossAxisAlignment: CrossAxisAlignment.center,
@@ -177,7 +188,7 @@ class _QRViewExampleState extends State<QRViewExample> {
     this.controller = controller;
     controller.scannedDataStream.listen((scanData) {
       setState(() {
-        qrText = scanData;
+        result = scanData;
       });
     });
   }
@@ -189,6 +200,7 @@ class _QRViewExampleState extends State<QRViewExample> {
   }
 }
 
+
 ```
 
 

example/lib/main.dart

@@ -33,13 +33,6 @@ class _QRViewExampleState extends State<QRViewExample> {
 
   @override
   Widget build(BuildContext context) {
-    String resultText;
-    if (result == null) {
-      resultText = 'No previous result';
-    } else {
-      resultText =
-          'This is the result of scan (${describeEnum(result.format)}): ${result.code}';
-    }
     return Scaffold(
       body: Column(
         children: <Widget>[
@@ -51,7 +44,10 @@ class _QRViewExampleState extends State<QRViewExample> {
               child: Column(
                 mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                 children: <Widget>[
-                  Text(resultText),
+                  if (result != null)
+                    Text('Barcode Type: ${describeEnum(result.format)}   Data: ${result.code}')
+                  else
+                    Text('Scan a code'),
                   Row(
                     mainAxisAlignment: MainAxisAlignment.center,
                     crossAxisAlignment: CrossAxisAlignment.center,

lib/src/qr_code_scanner.dart

@@ -106,6 +106,8 @@ class QRView extends StatefulWidget {
 }
 
 class _QRViewState extends State<QRView> {
+
+
   @override
   Widget build(BuildContext context) {
     return Stack(