Unexpected onDelete called just after Get.toNamed(), controller deleted.

[techieasif]

I'm just navigating to new page using named routes, as soon as toNamed trigged new screen flashed, then closed console shows 'onDelete called', REPLACE ROUTE with navigating one.

1. main.dart

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return GetMaterialApp(
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.green,
      ),
      initialRoute: AppRoutes.splash,
      getPages: Pages.getPages,
    );
  }
}

2. Pages

abstract class Pages {
  static List<GetPage> getPages = [
    GetPage(name: AppRoutes.splash, page: () => SplashPage(), binding: SplashBinding()),
    GetPage(name: AppRoutes.login, page: () => LoginPage(), binding: LoginBinding()),
    GetPage(name: AppRoutes.home, page: () => HomePage(), binding: HomeBinding(), transition: Transition.fadeIn),
    //issue in last one.
    GetPage(name: AppRoutes.newTask, page: () => NewTaskPage(), binding: TaskBindings(), transition: Transition.fadeIn),
  ];
}

NOTE: Navigating to NewTaskPage(),

3. Binding

class TaskBindings extends Bindings{
  @override
  void dependencies() {
   Get.put<TaskController>(TaskController());
  }
}

4. task controller

class TaskController extends GetxController{

@override
  void onInit() {
    //todo: fetch Task info.
    super.onInit();
  }

}

5. Task Page

class NewTaskPage extends GetView<TaskController> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.red,
      appBar: AppBar(
        title: Text("NEW TASK"),
      ),
      body: Center(child: Text("No Working"),),
    );
  }
}

6. Navigating function

void navigate2NewTask() {
    Get.toNamed(AppRoutes.newTask);
  }

7. calling above function

class HomePage extends GetView<HomeController> {
  final GlobalKey<ScaffoldState> _homeScfKey = GlobalKey<ScaffoldState>();
  @override
  Widget build(BuildContext context) {
    return Scaffold(
        floatingActionButton: FloatingActionButton(
//SEE HERE
          onPressed: () => controller.navigate2NewTask(),
          child: Icon(Icons.add),
        ),
        key: _homeScfKey,
        drawer: HomeDrawer(),
)
}
}

New task page flashed and then the console shows this:

[GETX] GOING TO ROUTE /new-task
[GETX] Instance "TaskController" has been created
[GETX] Instance "TaskController" has been initialized
flutter: Splash navigation
[GETX] REPLACE ROUTE /new-task
[GETX] NEW ROUTE /app-home
flutter: Splash navigation
[GETX] "TaskController" onDelete() called
[GETX] "TaskController" deleted from memory

Please help.
@jasonlaw

[flutterwithfaiz]

I am facing the same problem. Is there any solution available?

[techieasif]

Use Flutter bloc/cubit.

…

On Tue, 10 Aug 2021 at 16:14, flutterwithfaiz ***@***.***> wrote: I am facing the same problem. Is there any solution available? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1360 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AGFYZXXGBGSTISUDLWBLJKTT4D7ILANCNFSM43P6IJ2A> .

-- With Warm Regards, *MOHD ASIF*, LinkedIn: https://www.linkedin.com/in/techieasif

[HamzaMihfad]

You should call Get.find on the very first screen on your app, so GetX will not delete it:
YourController yourController = Get.find<YourController>();
it worked for me ✅

[vichuer]

Unfortunately this didn't work for me : (
Any other solution?

[devang5114]

same bro

[abdalwhabSalahaldeen]

try this
AddPointController yourController =
Get.put(AddPointController(), permanent: true);
its work with me

permanent: true
this will stop remove data

[reasje]

Hi, I had the same bug but in my case, I used Navigator.pushReplacement() for navigation so GetX didn't know anything about the route I am in and delete the controller for some reason.
Summary: Do not use Navigator for navigation when using GetX controller.

[niamulhasan]

This is the case, I found when back gesture or back button is pressed by default flutter calls Navigator.pop() is invoked, then this issue is created. But when Get.back() is used it behaves as intended.

[NegusNati]

you first need to persist the controller by calling it on the main method like

Get.find<PopularProductController>() .initProduct(Get.find<CartController>());
then when ever you initialize your dependencies use permanent: True or fenix: True for Get.lazyPut() .

Get.lazyPut(
       fenix: true,
      () => CartController(cartRepo: CartRepo()));
//or
     Get.put( CartController(cartRepo: CartRepo()), permanent:true);