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How to pass ternary that return a widget in Flutter

Hi I would like to make a condition using ternary inside my widget... but I didn't able to pass it... the error says that type '()=>Null' is not a subtype of type 'Widget' and here is the code

DateFormat("HH:mm:ss").format(DateTime.now()) =="05:12:01"
?
// the error starts from here since I have 2 commands (setState and widget Text) inside function
() {
setState(() {
  fail = true;
  _imageFile = null;
});
Text('Time is up');
}
: Text("Success")

what should I do to get Text('Time is up'); and 

setState(() {
  fail = true;
  _imageFile = null;
});

is that bad idea to wrap it inside function?

Solution 
  • Widget build(BuildContext context) {
  return someCondition ? SomeWidget() : OtherWidget();//someCondition is a bool defined in your class
}

    in the code you provided you should put an if statement you can't put statements in a conditional expression