Is there any way by which I can insert an item between a listview.builder in flutter?-CodePudding

I have a list of 10 items that I am displaying with a listview.builder. I want to display an item in between the listview after suppose 3 items in the list, how can I do that?

CodePudding user response：

Yes. there is a builder called Listview.separated()

 ListView.separated(
          itemCount: 10,
          itemBuilder: (context, index) => const ListTile(),
          separatorBuilder: (context, index) {
            if (index == 3) {
              // add widget after three item
              return Container();
            }
            return const SizedBox.shrink();
          },
        ),

CodePudding user response：

Building on Sanjay's answer, this should add it in the middle of the list without affecting the list

var list = [val1, val2, val3, ..];

ListView.separated(
      itemCount: list.length,
      itemBuilder: (context, index) => const ListTile(),
      separatorBuilder: (context, index) {
        // For even list length case
        if (list.length % 2 == 0 && index == list.length/2) {
          return YourSeparator();
        } 
        // For odd list length case (if you want it before the middle item then 
        // change to floor())
        else if (list.length % 2 == 1 && index == (list.length/2).ceil() ) {
          return YourSeparator();
        } else {
          return SizedBox();
        }
      },
    ),