Show dialog on widget

Question

In flutter, we want to overlay a dialog above the widget.

We were able to display the dialog after pushing the button.

However, we want to display that dialo

Answer 1

some of this is ambiguous, but you can show an alert dialog in a widgets init method like this

Future showDialog() async {

 WidgetsBinding.instance.addPostFrameCallback((_) async {
  await showDialog(
    context: context,
    builder: (BuildContext context) => AlertDialog(
          title: const Text('Title'),
          content: const Text('Content')
          actions: [
            FlatButton(
              child: const Text('OK'),
              onPressed: () {
                Navigator.of(context).pop();
              },
            ),
          ],
        ),
  );
});
}

this will wait for the first frame to be drawn before showing the dialog so you can call it from init

@override
  void initState() {
   super.initState();

   showDialog();
}