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dispose-getx-fields

added in: 1.18.0
warning
Pro+

Warns when a widget state field is not disposed in the onClose method.

Not disposing fields that have a dispose method may lead to memory leaks and should be avoided.

Example​

❌ Bad:

class _ShinyWidgetController extends GetxController {
  final _someDisposable = SomeDisposable();
  final _anotherDisposable = AnotherDisposable(); // LINT: This field is not disposed, which can lead to a memory leak. Try disposing this field in the widget's 'dispose' method.

  @override
  void onClose() {
    _someDisposable.dispose();

    super.onClose();
  }
}

✅ Good:

class _ShinyWidgetController extends GetxController {
  final _someDisposable = SomeDisposable();
  final _anotherDisposable = AnotherDisposable();

  @override
  void onClose() {
    _someDisposable.dispose();
    _anotherDisposable.dispose(); // Correct, disposed

    super.onClose();
  }
}