Passing variables to another class in flutter

Question

I want to pass two String variables to another class in flutter and used it. I tried but failed.

I tried this way but it said; Instance member can't be accessed using static. I want to know the right way to do it.

In MyHome class; I passed litemspage0[index] and litemsname0[index] to VideoPlayer0 class

    _getPage(int page) {
switch (page) {
  case 0:
    return ListView.builder(
      itemBuilder: (context, index) {
        return new Padding(
          padding:
              new EdgeInsets.symmetric(vertical: 8.0, horizontal: 16.0),
          child: new Card(
            elevation: 2.0,
            shape: RoundedRectangleBorder(
                borderRadius: new BorderRadius.circular(16.0)),
            child: InkWell(
              onTap: () {
                Navigator.of(context).push(
          new MaterialPageRoute(
            builder: (context) {
              return new VideoPlayer0(litemspage0[index],litemsname0[index]);
            },
          ),
        );

I want to use litemspage0[index],litemsname0[index] in VideoPlayer0 class. Here is the code I tried,

        class VideoPlayer0 extends StatefulWidget {

  final String litemspage0;
  final String litemsname0;

  VideoPlayer0(this.litemspage0, this.litemsname0);

  @override
  _MyHomePageState0 createState() => _MyHomePageState0();
}

class _MyHomePageState0 extends State<VideoPlayer0> {

  static const platform = const MethodChannel("www.youtube.com");
  TextEditingController _idController = TextEditingController();
  TextEditingController _seekToController = TextEditingController();
  double _volume = 1.0;
  VideoPlayerController _videoController;
  String position = "Get Current Position";
  String status = "Get Player Status";
  String videoDuration = "Get Video Duration";
  String _source = VideoPlayer0.litemspage0;
  bool isMute = false;

But I'm getting this error.

String _source = VideoPlayer0.litemspage0;

Instance member 'litemspage0' can't be accessed using static access.

I want to know the proper way to pass variables in one class to another in flutter.

To access state in stateful widget, you need to access by calling widget like widget.litemsname0 — alter123
– alter123, Commented Sep 16, 2019 at 12:06
I tried it. But getting an error. Only static members can be accessed in initializers. — Bimalka Nadeeshan
– Bimalka Nadeeshan, Commented Sep 16, 2019 at 12:25

alhussien aldali · Accepted Answer · 2019-09-16 12:42:07Z

1

That's not the right way to pass variables to another class . the right way goes like this :

VideoPlayer0(litemspage0: yourPageValue  ,litemsname0:yourNameValue);

and you can access them in the state class like that :

String _source = widget.litemspage0;

edited Sep 16, 2019 at 12:42

answered Sep 16, 2019 at 12:07

alhussien aldali

1397 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

alter123 Over a year ago

The constructor doesn't contains optional variables. In that case, named parameters in function calls are invalid!.

alhussien aldali Over a year ago

actually the constructor contain optional variables.so if you want it to be not optional you should add @required before this.variable

Jalil Compaoré · Accepted Answer · 2019-09-16 12:35:58Z

0

In your state class, in order to access the variables of the widget class, you’ll have to use widget. So in your case, use widget.litemspage0.

In addition, you’ll have to assign _source in initState() like so:

String _source;

@override
initState() {
  super.initState();
  _source = widget.litemspage0;
}

edited Sep 16, 2019 at 12:35

answered Sep 16, 2019 at 12:10

Jalil Compaoré

4044 silver badges15 bronze badges

2 Comments

Bimalka Nadeeshan Over a year ago

I tried it. But getting an error. Only static members can be accessed in initializers.

Bimalka Nadeeshan Over a year ago

Error in String _source = widget.litemspage0; widget

Collectives™ on Stack Overflow

Passing variables to another class in flutter

2 Answers 2

2 Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related