What is the alternative to RecyclerView in Flutter?

Following flutter-for/android-devs

The recommended, efficient, and effective way to build a list uses a ListView.Builder. This method is great when you have a dynamic List or a List with very large amounts of data. This is essentially the equivalent of RecyclerView on Android, which automatically recycles list elements for you:

@override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: Text("Sample App"),
        ),
        body: ListView.builder(
            itemCount: widgets.length,
            itemBuilder: (BuildContext context, int position) {
              return getRow(position);
            }));
  }

  Widget getRow(int i) {
    return GestureDetector(
      child: Padding(
          padding: EdgeInsets.all(10.0),
          child: Text("Row $i")),
      onTap: () {
        setState(() {
          widgets.add(getRow(widgets.length + 1));
          print('row $i');
        });
      },
    );
  }

You can also use animatedlist widget for animations. code example are given in the following link.

AnimatedList

ListView:

Usually this should be used with a small number of children as the List will also construct the invisible elements in the list and a large amount of elements may render this inefficient.

ListView.builder():

The list items are constructed lazily, meaning only a specific number of list items are constructed and when a user scrolls ahead, the earlier ones are destroyed.

More info is here.