如何自动加载对话框并消除抖动？

Question

I used Future.delayed(Duration.zero, () => welcomeDialogBoxx(context)); in build, a method to load dialog box automatically but there is an issue with it, whenever I navigate through another screen the dialog box further open on that screen. Dunno why it is loading further after got dismissed.

here is the method the defined for the dialog box

welcomeDialogBoxx(BuildContext context) {
    return showDialog(
        context: context,
        builder: (BuildContext context) {
          return AlertDialog(
            .....
          );
        });
  }

Answer 1

This should open your dialog only once. Remove the Future from your Build method and add this code to your initState:

 @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) => welcomeDialogBox(context));
  }