Back button of other pages navigate to home

lib/pages/TestPages/test_add_screen.dart

@@ -23,6 +23,7 @@ class _TestResultAddScreenState extends State<TestResultAddScreen> {
 
   TextEditingController testCodeCTRL = new TextEditingController();
   bool isInit = true;
+
   @override
   void didChangeDependencies() {
     if (isInit) {
@@ -48,19 +49,27 @@ class _TestResultAddScreenState extends State<TestResultAddScreen> {
     // final double _pixelRatio = (_media.size.height / _media.size.width * 7 / 5);
     final double _devicewidth = _media.size.width;
     final double _deviceBlockSize = _devicewidth / 100;
-    return WillPopScope(
-      onWillPop: () async {
-        Navigator.pushReplacementNamed(
-          context,
-          Routes.testResultScreen,
-        );
-        return true;
+    return PopScope(
+      canPop: false,
+      onPopInvoked: (didPop) {
+        if (didPop) return;
+        Navigator.of(context).pushNamed(Routes.homePage);
+        // Navigator.pushReplacementNamed(
+        //   context,
+        //   Routes.testResultScreen,
+        // );
+        // return true;
       },
       child: SafeArea(
         child: Scaffold(
           appBar: AppBar(
             titleSpacing: -10,
-            title: Text('Test Results', style: TextStyle(color: Colors.white,),),
+            title: Text(
+              'Test Results',
+              style: TextStyle(
+                color: Colors.white,
+              ),
+            ),
             backgroundColor: Colors.black,
             leading: IconButton(
               icon: Icon(