textField and textEditControl ,Get user input on button click - Flutter

GiftMogale — Tue, 22 Feb 2022 08:05:33 +0000

I am building a chat screen and trying to get messages from textEditController instead of getting them from the message model.

Code below:

 TextEditingController _controller =
  new TextEditingController();

String _text = '';

...


IconButton(
        icon: Icon(Icons.send),
        iconSize: 25.0,
        color: Theme.of(context).primaryColor,
        onPressed: () async {
          DataModel? data = await submitData(_controller);
          _dataModel = data;
          setState(
            () {
              _text = _controller.text.toString();
            },
          );
        },
      ),

....

 child: TextField(
          controller: _controller, 
          textCapitalization: TextCapitalization.sentences,
          onChanged: (value) {},
          decoration: InputDecoration(hintText: 'Send a message...'),
        ),

How to pass data in flutter on Stateless Widget?

GiftMogale — Thu, 10 Feb 2022 01:52:27 +0000

I'm trying to do an assignment, and have run into difficulty with passing data into Stateless Widgets. I have the following classes:

 class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: Page1(),
    );
  }
}




class Page1 extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
          child: ElevatedButton(
        onPressed: () {
          Navigator.push(
              context, MaterialPageRoute(builder: (context) => Page2(messageData: messageData)));
        },
        child: Text('Request Chat'),
      )),
    );
  }
}




class Page2 extends StatelessWidget {
  //Navigation
  static Route route(MessageData data) => MaterialPageRoute(
        builder: (context) => Page2(
          messageData: data,
        ),
      );

  const Page2({Key? key, required this.messageData}) : super(key: key);

  final MessageData messageData;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        iconTheme: Theme.of(context).iconTheme,
        centerTitle: false,
),
),
},


@immutable
class MessageData {
  const MessageData(
      {required this.senderName,
      required this.message,
      required this.messageDate,
      required this.dateMessage,
      required this.profilePicture});

  final String senderName;
  final String message;
  final DateTime messageDate;
  final String dateMessage;
  final String profilePicture;
}

There is my messageData above that I need to pass.

Basically, I want to be able to Navigate to Page2() but I keep getting an error at Navigator.push() . Error details: Type' can't be assigned to the parameter type 'MessageData'.

And when there are no arguments on Page2() the error message: The named parameter 'messageData' is required, but there's no corresponding argument.

Fork Me! FCC: Test Suite Template

GiftMogale — Tue, 02 Jun 2020 23:53:50 +0000

DEV Community: GiftMogale

textField and textEditControl ,Get user input on button click - Flutter

How to pass data in flutter on Stateless Widget?

Fork Me! FCC: Test Suite Template