how to pass parameter in stateful widget code example
Example 1: send params to stateful widget
class Screen1 extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Center(
child: Screen2(userId: "89d6db7e-7469-4888-9fac-38c300628ff1")
);
}
}
class Screen2 extends StatefulWidget {
final String userId;
Screen2({ Key key, this.userId }): super(key: key);
@override
_Screen2State createState() => _Screen2State();
}
class _Screen2State extends State<Screen2> {
@override
Widget build(BuildContext context) {
return Text(widget.userId);
}
}
Example 2: flutter constructor in statefull widget
STATEFUL WIDGET CONSTRUCTOR
class ServerIpText extends StatefulWidget {
final String serverIP;
const ServerIpText ({ Key key, this.serverIP }): super(key: key);
@override
_ServerIpTextState createState() => _ServerIpTextState();
}
class _ServerIpTextState extends State<ServerIpText> {
@override
Widget build(BuildContext context) {
return Text(widget.serverIP);
}
}
class AnotherClass extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Center(
child: ServerIpText(serverIP: "127.0.0.1")
);
}
}