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

example/lib/main.dart

@@ -45,7 +45,8 @@ class _QRViewExampleState extends State<QRViewExample> {
                 mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                 children: <Widget>[
                   if (result != null)
-                    Text('Barcode Type: ${describeEnum(result.format)}   Data: ${result.code}')
+                    Text(
+                        'Barcode Type: ${describeEnum(result.format)}   Data: ${result.code}')
                   else
                     Text('Scan a code'),
                   Row(

lib/src/qr_code_scanner.dart

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