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

Question

In Flutter i am passing data to a new screen, Here is my first_Screen sending data

                        Navigator.push(
                        context,
                        MaterialPageRoute(
                              builder: (context) => updatenote(
                              id:      snapshot.data[index],
                              title:   snapshot.data[index]['title'],
                              content: snapshot.data[index]['content']),
                          ),
                        );

Here is my second screen getting data,

class updatenote extends StatefulWidget {
const updatenote({super.key, required this.id , required this.title , required this.content });
final dynamic id;
final dynamic title;
final dynamic content;

@override
State<updatenote> createState() => _updatenoteState();
}

class _updatenoteState extends State<updatenote> {

// instance of text_ediitng controllers 
final titleController   = TextEditingController(text: widget.title);
final contentController = TextEditingController(text: widget.content);

now the problem is i can't access widget.title and widget.content outside of my build , here i want to pass that data as a parameter to the TextEditingController. but get this (error)..

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

Answer 1

You could define them as late

late final titleController = TextEditingController(text: widget.title);
late final contentController = TextEditingController(text: widget.content);

This makes it that the assignment happens lazily, meaning it happens at the point where you first use them. This allows it to use widget there