changed to getx

lib/controller/animate.dart

@@ -0,0 +1,22 @@
+import 'package:flutter/animation.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+class Animate extends GetxController with SingleGetTickerProviderMixin{
+  late Rx<AnimationController> animationController;
+
+
+  @override
+  void onInit() {
+    super.onInit();
+    animationController =
+            AnimationController(duration: const Duration(seconds: 1), vsync: this).obs;
+    animationController.value.repeat(reverse: true);
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+    animationController.value.dispose();
+  }
+}

lib/controller/scan_controller.dart

@@ -0,0 +1,35 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:qr_code_scanner/qr_code_scanner.dart';
+import 'package:qrcode_scanner/data/scan_data.dart';
+
+class ScanController extends GetxController {
+  var controller;
+  var barcodeResult;
+  var flashIcon = Icons.flash_off.obs;
+
+  Rx<int> barcodefound = 0.obs;
+
+  var camPermission = true.obs;
+
+  void updateContoller(QRViewController cont) {
+    controller = cont.obs;
+    controller.value.scannedDataStream.listen((scanData) {
+      if (scannedData.indexWhere((element) => element.text == scanData.code) ==
+              -1 ||
+          scannedData.length == 0) {
+        scannedData.add(ScannedData(
+            text: scanData.code,
+            time: DateTime.now().toString().split(" ")[1].substring(0, 8)));
+      }
+      barcodeResult = scanData;
+      barcodefound(barcodefound.value+1);
+    });
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+    controller?.dispose();
+  }
+}

lib/main.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:get/get.dart';
 import 'package:qrcode_scanner/pages/home.dart';
 
 void main() {
@@ -8,7 +9,7 @@ void main() {
 class MyApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
+    return GetMaterialApp(
       debugShowCheckedModeBanner: false,
       title: 'QR code Scanner',
       theme: ThemeData(

lib/pages/home.dart

@@ -1,41 +1,14 @@
-import 'dart:io';
-
 import 'package:flutter/material.dart';
+import 'package:get/get.dart';
 import 'package:qr_code_scanner/qr_code_scanner.dart';
-import 'package:qrcode_scanner/data/scan_data.dart';
+import 'package:qrcode_scanner/controller/scan_controller.dart';
+import 'package:qrcode_scanner/pages/scan_animation.dart';
 import 'package:qrcode_scanner/pages/view_scans.dart';
 
-class HomePage extends StatefulWidget {
-  const HomePage({Key? key}) : super(key: key);
-
-  @override
-  _HomePageState createState() => _HomePageState();
-}
-
-class _HomePageState extends State<HomePage> with TickerProviderStateMixin {
-  Barcode? barcodeResult;
+class HomePage extends StatelessWidget {
   final GlobalKey qrScanner = GlobalKey(debugLabel: 'QR');
-  QRViewController? controller;
-  IconData flashIcon = Icons.flash_off;
-  late AnimationController _animationController;
-  Tween<Offset> _tween = Tween(begin: Offset(0, -7), end: Offset(0, 7));
-  bool camPermission = true;
 
-  @override
-  void initState() {
-    super.initState();
-    _animationController =
-        AnimationController(duration: const Duration(seconds: 1), vsync: this);
-    _animationController.repeat(reverse: true);
-  }
-
-  @override
-  void reassemble() {
-    super.reassemble();
-    if (Platform.isAndroid) {
-      controller!.pauseCamera();
-    }
-  }
+  final stateContoller = Get.put(ScanController());
 
   @override
   Widget build(BuildContext context) {
@@ -49,11 +22,10 @@ class _HomePageState extends State<HomePage> with TickerProviderStateMixin {
             onQRViewCreated: _onQRViewCreated,
             onPermissionSet: (controller, isSet) {
               if (isSet == false) {
-                camPermission = false;
+                stateContoller.camPermission(false);
               } else {
-                camPermission = true;
+                stateContoller.camPermission(true);
               }
-              setState(() {});
             },
             overlay: QrScannerOverlayShape(
                 cutOutSize: MediaQuery.of(context).size.width * 0.7,
@@ -66,32 +38,21 @@ class _HomePageState extends State<HomePage> with TickerProviderStateMixin {
             top: 100,
             child: Container(
                 child: Text(
-              camPermission ? "" : "Give Camera Permission!",
+              stateContoller.camPermission.value
+                  ? ""
+                  : "Give Camera Permission!",
               style: TextStyle(fontSize: 25, color: Colors.red),
             )),
           ),
-          Container(
-              padding: EdgeInsets.all(10),
-              child: SlideTransition(
-                position: _tween.animate(CurvedAnimation(
-                    parent: _animationController, curve: Curves.easeInOut)),
-                child: Container(
-                  width: 240,
-                  child: Divider(
-                    thickness: 2,
-                    color: Colors.red,
-                  ),
-                ),
-              )),
+          ScanAnimation(),
           buildScannedOutput(),
           buildFlashButton(),
           Positioned(
             bottom: 30,
             child: Container(
               child: ElevatedButton(
                   onPressed: () {
-                    Navigator.push(context,
-                        MaterialPageRoute(builder: (context) => ViewScans()));
+                    Get.to(() => ViewScans());
                   },
                   child: Row(
                     children: [
@@ -111,70 +72,56 @@ class _HomePageState extends State<HomePage> with TickerProviderStateMixin {
     ));
   }
 
-  Positioned buildFlashButton() {
-    return Positioned(
-      top: 20,
-      child: Container(
-        child: IconButton(
-          icon: Icon(
-            flashIcon,
-            color: Colors.white,
-            size: 40,
-          ),
-          onPressed: () async {
-            setState(() {
-              controller?.toggleFlash();
-              if (flashIcon == Icons.flash_on) {
-                flashIcon = Icons.flash_off;
+  Widget buildFlashButton() {
+    return Obx(
+      () => Positioned(
+        top: 20,
+        child: Container(
+          child: IconButton(
+            icon: Icon(
+              stateContoller.flashIcon.value,
+              color: Colors.white,
+              size: 40,
+            ),
+            onPressed: () async {
+              stateContoller.controller.value?.toggleFlash();
+              if (stateContoller.flashIcon.value == Icons.flash_on) {
+                stateContoller.flashIcon(Icons.flash_off);
               } else {
-                flashIcon = Icons.flash_on;
+                stateContoller.flashIcon(Icons.flash_on);
               }
-            });
-          },
+            },
+          ),
         ),
       ),
     );
   }
 
-  Positioned buildScannedOutput() {
-    return Positioned(
-      bottom: 100,
-      left: 0,
-      right: 0,
-      child: Container(
+  Widget buildScannedOutput() {
+    return Obx(
+      () => Positioned(
+        bottom: 100,
+        left: 0,
+        right: 0,
+        child: Container(
           alignment: Alignment.bottomCenter,
           child: Padding(
             padding: const EdgeInsets.all(16.0),
             child: Text(
-              barcodeResult != null ? barcodeResult!.code : "Scan Something",
+              stateContoller.barcodefound.value > 0
+                  ? stateContoller.barcodeResult.code
+                  : "Scan Something",
               maxLines: 2,
               textAlign: TextAlign.center,
               style: TextStyle(color: Colors.white, fontSize: 20),
             ),
-          )),
+          ),
+        ),
+      ),
     );
   }
 
   void _onQRViewCreated(QRViewController controller) {
-    this.controller = controller;
-    controller.scannedDataStream.listen((scanData) {
-      if (scannedData.indexWhere((element) => element.text == scanData.code) ==
-              -1 ||
-          scannedData.length == 0) {
-        scannedData.add(ScannedData(
-            text: scanData.code,
-            time: DateTime.now().toString().split(" ")[1].substring(0, 8)));
-      }
-      setState(() {
-        barcodeResult = scanData;
-      });
-    });
-  }
-
-  @override
-  void dispose() {
-    controller?.dispose();
-    _animationController.dispose();
-    super.dispose();
+    stateContoller.updateContoller(controller);
   }
 }

lib/pages/scan_animation.dart

@@ -0,0 +1,25 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:qrcode_scanner/controller/animate.dart';
+
+class ScanAnimation extends StatelessWidget {
+  final Tween<Offset> _tween = Tween(begin: Offset(0, -7), end: Offset(0, 7));
+  final animateController = Get.put(Animate());
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+        padding: EdgeInsets.all(10),
+        child: Obx(() => SlideTransition(
+            position: _tween.animate(CurvedAnimation(
+                parent: animateController.animationController.value, curve: Curves.easeInOut)),
+            child: Container(
+              width: 240,
+              child: Divider(
+                thickness: 2,
+                color: Colors.red,
+              ),
+            ),
+          ),
+        ));
+  }
+}

lib/pages/view_scans.dart

@@ -3,14 +3,7 @@ import 'dart:math';
 import 'package:flutter/material.dart';
 import 'package:qrcode_scanner/data/scan_data.dart';
 
-class ViewScans extends StatefulWidget {
-  const ViewScans({Key? key}) : super(key: key);
-
-  @override
-  _ViewScansState createState() => _ViewScansState();
-}
-
-class _ViewScansState extends State<ViewScans> {
+class ViewScans extends StatelessWidget {
   final _random = Random();
 
   Color? listColor() {

pubspec.lock

@@ -72,6 +72,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  get:
+    dependency: "direct main"
+    description:
+      name: get
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.3.4"
   js:
     dependency: transitive
     description:

pubspec.yaml

@@ -25,6 +25,7 @@ dependencies:
     sdk: flutter
 
   qr_code_scanner: ^0.5.2
+  get:
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.