Sorun

import 'package:flutter/material.dart';

void main() {
  runApp(MyFoodApp());
}

class MyFoodApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        backgroundColor: Colors.white,
        appBar: AppBar(
          title: const Text(
            "BU GÜN NE YESEM",
            style: TextStyle(
              color: Colors.white,
            ),
          ),
          centerTitle: true,
          backgroundColor: Colors.orangeAccent,
        ),
        body:
            YemekSayfasi(), 
      ),
      color: Colors.red,
    );
  }
}

class YemekSayfasi extends StatefulWidget {  @override
  
  State<YemekSayfasi> createState() => _YemekSayfasiState();
}

class _YemekSayfasiState extends State<YemekSayfasi> {
  
  @override
  Widget build(BuildContext context) {
    int yemekNo = 1;
    int corbaNo = 2; 
    int tatliNo = 1;
    return Center(
      child: Column(
        children: <Widget> [
          Expanded(
            child: Padding(
             
              padding: const EdgeInsets.all(12.0),
              child: TextButton(
                 
                style: TextButton.styleFrom(
                  backgroundColor:
                      Colors.white,                           
                  foregroundColor:
                      Colors.black,                                  
                  padding: EdgeInsets.all(20.0),
                ),
                onPressed: () {
                 setState(() {
                   int corbaNo = 2; 
                   corbaNo = 4;
                 });
                },
                child: Image.asset('images/corba_$corbaNo.jpg'),
              ),
            ),
          ),

          Expanded(
            child: Padding(
              padding: const EdgeInsets.all(12.0),
              child: TextButton(
                style: TextButton.styleFrom(
                  foregroundColor: Colors.red, 
                  /,

                  backgroundColor:
                      Colors.white, 
                ),
                onPressed: () { 
                  setState(() {
                    yemekNo = 2;
                    print("Yemek No: $yemekNo");
                  });
                },
                child: Image.asset('images/yemek_$yemekNo.jpg'),
              ), 
          ), 
          
          
          Expanded( 
             child: Padding(
              padding: const EdgeInsets.all(8.0),
              child: TextButton(
                style: TextButton.styleFrom(
                  foregroundColor: Colors.red,
                  backgroundColor: Colors.white,
                  padding: EdgeInsets.all(20.0),
                ),
                onPressed: () {
                  setState(() {
                    tatliNo = 3;
                  }); 
                  print("Tatlı No: $tatliNo");
                  
                },
                child: Image.asset('images/tatli_$tatliNo.jpg'),
              ),
            ),
          ), 
        ],
      ),
    );
  }
}