Flutter: How to read preferences at Widget startup?

Question

I have been trying to read preferences at Widget startup but have been unable to find a solution. I wish to show the users name in a TextField (which they can change) and st

Answer 1

initState() is a synchronous function where you cannot mark async, as async convert that function into asynchronous.

Below code helps to load shared preference values at loading time, and used to update widgets.

@override
  void initState() {
    super.initState();
    SharedPreferences.getInstance().then((prefValue) => {
      setState(() {
        _name = prefValue.getString('name')?? "";
        _controller = new TextEditingController(text: _name);
      })
    });
  }