The instance member 'locale' can't be accessed in an initialize in the A class

Question

I have a class A and also I have a delegate of class A. I have some getters like:

String get appTitle {
    return localizedValues[locale.languageCode]!['welcome']!;
  }

  String get timeIsUpTitle {
    return localizedValues[locale.languageCode]!['hello']!;
  }

So here you can see the codes are duplicated. So I want to replace localizedValues[locale.languageCode]! this, to some value like selectedLanguage as an example. When I try this, it gives an error:

The instance member 'locale' can't be accessed in an initializer.
Try replacing the reference to the instance member with a different expression

How can I solve this problem?

my class for example,

class A {
A(this.locale)

final Locale locale;
String get timeIsUpTitle {
    return localizedValues[locale.languageCode]!['welcome']!;
  }

some properties...
.
.
}

Also If you have any suggestion to avoid duplicate (string get string get......) I can take them.

Answer 1

You can do a method which will get that information using a paramenter:

class A {
  A(this.locale);

  final Locale locale;

  String timeIsUpTitle2(String selectedLanguage) { // here pass the parameter you want to use

    return localizedValues[selectedLanguage]!['welcome']!; // then get the value

  }

}