How to save the selected datetime from DateTimeField in Flutter-CodePudding

I have used the below code to save the date time. It selects both date and time and displays the selected date and time in the textfield. But how do I save it in a variable or how do I save it in my database. I have 'note' table in database. I want to save the selected date and time in 'actn_on' column in 'note' table.

Text('Action on (${format.pattern})'),
    DateTimeField(
    format: format,
    onShowPicker: (context, currentValue) async {
    final date = await showDatePicker(
    context: context,
    firstDate: DateTime(1900),
    initialDate: currentValue ?? DateTime.now(),
    lastDate: DateTime(2100));
    if (date != null) {
    final time = await showTimePicker(
    context: context,
    initialTime:
    TimeOfDay.fromDateTime(currentValue ?? DateTime.now()),
      
    );
    return DateTimeField.combine(date, time);


    } else {
    return currentValue;
    }
    },
    ),

CodePudding user response：

At First, Declare a Controller,

final TextEditingController _timeController = TextEditingController();

then pass it to the

DateTimeField

like this

DateTimeField(
  controller: _timeController,
    ....
)

access it like _timeController.text

Or else DateTimeField also offer onSaved, to use this, first declare a variable var _time and then pass it like this

DateTimeField(
  onSaved: (val) => setState(() => _time = val),
   ....
    )

CodePudding user response：

I belive your answer is in this field: return currentValue; Just make a variable outside and assign currentValue to it.Like:

class MyWidget extends StatelessWidget{
String dt = ""; 
Widget build(BuildContext c){
// your code
.....
else {
dt = currentValue;
    return currentValue;
    }

}
}