How to set Provider value from class field?

Issue

I am using Provider. I have got class. And I need to set value to Provider from field. But I do not have access to context here.

class _DateAndTimePickerDemoState extends State<DateAndTimePickerDemo> 
{
  DateTime _fromDate = DateTime.now();
  Provider.of<AppState>(context).selected_period = date; // here
}

How to set Provider value from class field?

Solution

You can get context in two ways:

• Inside initState by calling Future.delayed(Duration.zero,() {... context ...})
• After build method has been called Widget build(BuildContext context) {...}

In your case, I would call Provider.of<AppState>(context).selected_period = date; after build method, because most of the functions I define inside build method anyways so I can easily access context.

Answered By – Mārtiņš Ciekurs

Answer Checked By – Robin (FlutterFixes Admin)