[FormBuilderTypeAhead]: Calls dispose on the TextEditingController even when it is passed in

Is there an existing issue for this?

[X] I have searched the existing issues

Package/Plugin version

10.1.0

Platforms

[ ] Android
[ ] iOS
[ ] Linux
[ ] MacOS
[X] Web
[ ] Windows

Flutter doctor

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Minimal code example

Code sample

```dart import 'package:flutter/material.dart'; import 'package:form_builder_extra_fields/form_builder_extra_fields.dart'; class Example extends StatefulWidget { const Example({super.key}); @override State createState() => _ExampleState(); } class _ExampleState extends State { final _controller = TextEditingController(); @override void dispose() { // This will throw a `TextEditingController was used after being disposed` // exception, since it was already disposed by the FormBuilderTypeAhead. _controller.dispose(); super.dispose(); } @override Widget build(BuildContext context) { return FormBuilderTypeAhead( name: 'name', controller: _controller, itemBuilder: (context, itemData) => const SizedBox(), suggestionsCallback: (pattern) => [], ); } } ```

Current Behavior

When I call a dispose on a controller I have created, and pass it to a FormBuilderTypeAhead, it throws a:

A TextEditingController was used after being disposed.

Once you have called dispose() on a TextEditingController, it can no longer be used.
The relevant error-causing widget was ...

Expected Behavior

I expect the FormBuilderTypeAhead widget to dispose the controllers it created itself, and not to dispose the controller created outside of it.

Steps To Reproduce

Run:


import 'package:flutter/material.dart';
import 'package:form_builder_extra_fields/form_builder_extra_fields.dart';

void main(List args) { runApp( const MaterialApp( home: HomeWidget(), ), ); }

class HomeWidget extends StatelessWidget { const HomeWidget({ super.key, });

@override Widget build(BuildContext context) { return Scaffold( body: Center( child: TextButton( onPressed: () { Navigator.push( context, MaterialPageRoute( builder: (context) => Scaffold( appBar: AppBar(), body: const Center(child: Example()), ), ), ); }, child: const Text('Open page'), ), ), ); } }

class Example extends StatefulWidget { const Example({super.key});

@override State createState() => _ExampleState(); }

class _ExampleState extends State { final _controller = TextEditingController();

@override void dispose() { // This will throw a TextEditingController was used after being disposed // exception, since it was already disposed by the FormBuilderTypeAhead. _controller.dispose(); super.dispose(); }

@override Widget build(BuildContext context) { return FormBuilderTypeAhead( name: 'name', controller: _controller, itemBuilder: (context, itemData) => const SizedBox(), suggestionsCallback: (pattern) => [], ); } }

2. See the error.

### Aditional information

A way to fix this problem is using the same validation that FormBuilderTextField uses:
```dart
  @override
  void dispose() {
    // Dispose the _controller when initState created it
    _controller!.removeListener(_handleControllerChanged);
    if (null == widget.controller) {
      _controller!.dispose();
    }
    super.dispose();
  }

Disposing the controller only when initState creates it. Currently it disposes anyway:

  @override
  void dispose() {
    // Dispose the _typeAheadController when initState created it
    super.dispose();
    _typeAheadController.dispose();
  }

flutter-form-builder-ecosystem / form_builder_extra_fields