If you truly think this variable can be null then you would change the type by adding a ? after it so that the required keyword is not needed, or you can add a default value to the parameter. The @required annotation marks named arguments that must be passed; if not, the analyzer reports a hint.
Read moreWhat is the use of super in flutter?
super is used to call the constructor of the base class . So in your example, the constructor of CardTitle is calling the constructor of StatelessWidget .
Read moreHow do you pass parameters to a stateful widget?
To pass data to the stateful widget just pass parameters to the state using the constructor . You can easily access this parameter using the widget. yourPeram in your second stateful widget.
Read moreHow do you pass parameters to a stateful widget?
To pass data to the stateful widget just pass parameters to the state using the constructor . You can easily access this parameter using the widget. yourPeram in your second stateful widget.
Read moreHow do you create a constructor in stateless widget in flutter?
“flutter stateless widget constructor” Code Answer’s
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