hi I have Row in flutter and I want add some widget on row with listview.builder, listview sort all item vertically. but I want show them horizontally. in the image below you can see my code and the result.so how can i change the listview.builder to horizontal?

>Solution :

You need set height for your ListView if you want to use it horizontally, and set scrollDirection to Axis.horizontal:

Row(
        children: [
          IconButton(onPressed: () {}, icon: Icon(Icons.chevron_left)),
          Expanded(
              child: SizedBox(
            height: 10,
            child: ListView.builder(
              scrollDirection: Axis.horizontal,
              itemBuilder: (context, index) {
                return Container(
                  margin: EdgeInsets.symmetric(horizontal: 12),
                  height: 10,
                  width: 10,
                  color: Colors.red,
                );
              },
              itemCount: 10,
            ),
          )),
          IconButton(onPressed: () {}, icon: Icon(Icons.chevron_right)),
        ],
      ),