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listflutterdartscrollview

How to change scroll direction on ontap in flutter?


I have 10 images in column with singlechildscrollview and i want to change that 10 image scrol direction vertical to hrizontal on ontap to container how to do this help me.....

in simple i want to change column to row on ontap......

I have 10 images in column with singlechildscrollview and i want to change that 10 image scrol direction vertical to hrizontal on ontap to container how to do this help me.....

in simple i want to change column to row on ontap......

    import 'package:flutter/material.dart';

void main() {
  runApp(
    MaterialApp(
      debugShowCheckedModeBanner: false,
      home: MyApp(),
    ),
  );
}

class MyApp extends StatefulWidget {
  MyApp({Key? key}) : super(key: key);

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  List imglist = [
    Image.asset('images/1.jpeg'),
    Image.asset('images/2.jpeg'),
    Image.asset('images/3.jpeg'),
    Image.asset('images/4.jpeg'),
    Image.asset('images/5.jpeg'),
    Image.asset('images/6.jpeg'),
    Image.asset('images/7.jpeg'),
    Image.asset('images/8.jpeg'),
    Image.asset('images/9.jpeg'),
    Image.asset('images/10.jpeg'),
  ];
  @override
  Widget build(BuildContext context) {
    double h = MediaQuery.of(context).size.height;
    double w = MediaQuery.of(context).size.width;

    return Scaffold(
        resizeToAvoidBottomInset: false,
        appBar: AppBar(
          centerTitle: true,
          elevation: 0,
          backgroundColor: Colors.black,
          title: const Text(
            "GALLERY VIEWER",
            style: TextStyle(fontSize: 30, letterSpacing: 3),
          ),
          actions: [Icon(Icons.grid_view_sharp)],
        ),
        body: SingleChildScrollView(
          child: Column(
            children: [
              Image.asset(
                'images/1.jpeg',
              ),
              Image.asset(
                'images/2.jpeg',
              ),
              Image.asset(
                'images/3.jpeg',
              ),
              Image.asset(
                'images/4.jpeg',
              ),
              Image.asset(
                'images/5.jpeg',
              ),
              Image.asset(
                'images/6.jpeg',
              ),
              Image.asset(
                'images/7.jpeg',
              ),
              Image.asset(
                'images/8.jpeg',
              ),
              Image.asset(
                'images/9.jpeg',
              ),
              Image.asset(
                'images/10.jpeg',
              ),
            ],
          ),
        ),
        backgroundColor: Colors.black);
  }
}

Solution

  • i have modified your code a bit, see blow code how you can achieve it by using ListView-

      import 'package:flutter/material.dart';
        void main() {
          runApp(
            MaterialApp(
              debugShowCheckedModeBanner: false,
              home: MyApp(),
            ),
          );
        }
        
        class MyApp extends StatefulWidget {
          MyApp({Key? key}) : super(key: key);
        
          @override
          State<MyApp> createState() => _MyAppState();
        }
        
        class _MyAppState extends State<MyApp> {
         
          List imglist = [
            Image.asset('images/1.jpeg'),
            Image.asset('images/2.jpeg'),
            Image.asset('images/3.jpeg'),
            Image.asset('images/4.jpeg'),
            Image.asset('images/5.jpeg'),
            Image.asset('images/6.jpeg'),
            Image.asset('images/7.jpeg'),
            Image.asset('images/8.jpeg'),
            Image.asset('images/9.jpeg'),
            Image.asset('images/10.jpeg'),
          ];
          
          bool isVertical = true;
          
          @override
          Widget build(BuildContext context) {
            return Scaffold(
                resizeToAvoidBottomInset: false,
                appBar: AppBar(
                  centerTitle: true,
                  elevation: 0,
                  backgroundColor: Colors.black,
                  title: const Text(
                    "GALLERY VIEWER",
                    style: TextStyle(fontSize: 30, letterSpacing: 3),
                  ),
                  actions: [
                    IconButton(onPressed: (){
                      setState(() {
                        isVertical = !isVertical;
                      });
                    }, icon:const Icon(Icons.grid_view_sharp))
                  ],
                ),
                body: ListView.builder(
                  itemCount: imglist.length,
                  scrollDirection: isVertical ? Axis.vertical : Axis.horizontal,
                  itemBuilder: (context, index){
                    return imglist[index];
                  },
                ),
                backgroundColor: Colors.black,
            );
          }
        }