Up until recently, it wasn’t possible to check if a StatelessWidget was mounted in Flutter.

But since Flutter 3.7, BuildContext itself has a mounted property! 🎉

Since Flutter 3.7, BuildContext as a mounted property that we can check inside any widget
Since Flutter 3.7, BuildContext as a mounted property that we can check inside any widget

This makes it easy to check if any widget is mounted, just like this:

// inside any widget
@override
Widget build(BuildContext context) {
  return ElevatedButton(
    child: const Text('Submit'),
    onPressed: () async {
      await doSomeAsyncWork(); // a method that returns a Future
      if (context.mounted) {
        Navigator.of(context).pop();
      }
    },
  );
}

That’s a great quality-of-life improvement. 👌

Note: to better understand when you should check if a widget is mounted, watch this video: