DatePicker on Flutter: null value on getting date piked :

can't get the date picked from my datepicker though i didn't getting error on my code.

  Future selectDate() async {
    DateTime picked = await showDatePicker(
        context: context,
        initialDate: new DateTime.now(),
        firstDate: new DateTime(2016),
        lastDate: new DateTime(2222));
    if (picked != null) setState(() => picked = datepicked);
    else{
      print(picked);
    }
  }
}

You need to pass the context in the datepicker method. Complete working code below:

body: Center(
        child: TextButton(
        child: Text('click'),
        onPressed: () {
          selectDate(context);
          }
        )
      ),


Future selectDate(BuildContext context) async {
    DateTime picked = await showDatePicker(
        context: context,
        initialDate: selectedDate,
        firstDate: new DateTime(2016),
        lastDate: new DateTime(2222));
    if (picked != null && picked!= selectedDate) {
      setState(() => selectedDate = picked);
      print(picked);
    }
    else{
      print(picked);
    }
  }

Result:

2020-02-21 00:00:00.000