How to use 'context' in provider store in flutter?

Question

I'm trying to write showDialog function in the provider store, so I can separate UI codes and business logic codes. However, I can't write the context inside showDialog and causes error that Undefined name 'context'. I'm wondering why I can't write context in provider and how can I fix this problem.

This is the provider codes and I want to put showDialog function.

 class LoginSignupData extends ChangeNotifier{ final authentication = FirebaseAuth.instance; bool isSignup = true; bool isSignupValid = false; final formKey = GlobalKey<FormState>(); String userName = ''; String userEmail = ''; String userPassword = ''; String nameError = 'Please enter at least 4 characters'; String emailError = 'Please enter a valid email address.'; String passwordError = 'Password must be at least 7 characters long.'; changeBool(status){ isSignup = status; notifyListeners(); } signIn() async{ showDialog( context: context, // error barrierDismissible: false, builder: (context) => const Center(child: CircularProgressIndicator(),) ) try { await authentication.signInWithEmailAndPassword( email: userEmail, password: userPassword ); } on FirebaseAuthException catch (e) { print('FirebaseAuthException : $e'); } notifyListeners(); } tryValidation() { final isValid = formKey.currentState!.validate(); if (isValid) { formKey.currentState!.save(); isSignupValid = true; notifyListeners(); } notifyListeners(); } }`

Danny · Accepted Answer · 2022-06-12 23:58:47Z

when declaring the signIn() function, make it like this.. signIn(BuildContext context).. then when you call it from another method/function make sure to pass the context of which you call it from.. like this.. signIn(context)

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