Pass the current list size into itemBuilder

Author: hacker1024

example/README.md

@@ -52,8 +52,8 @@ class _MyHomePageState extends State<MyHomePage> {
     return Scaffold(
       appBar: AppBar(title: Text(widget.title)),
       body: Pagination(
-        pageBuilder: (currentListSize) => pageData(currentListSize),
-        itemBuilder: (item) => ListTile(title: Text(item)),
+        pageBuilder: (currentListSize) => pageData(currentSize),
+        itemBuilder: (index, currentListSize, item) => ListTile(title: Text(item)),
       ),
     );
   }

lib/paging.dart

@@ -11,7 +11,7 @@ import 'package:flutter/material.dart';
 typedef PaginationBuilder<T> = Future<List<T>> Function(int currentListSize);
 
 /// Signature for a function that creates a widget for a given item of type 'T'.
-typedef ItemWidgetBuilder<T> = Widget Function(int index, T item);
+typedef ItemWidgetBuilder<T> = Widget Function(int index, int currentListSize, T item);
 
 /// A scrollable list which implements pagination.
 ///
@@ -129,7 +129,7 @@ class _PaginationState<T> extends State<Pagination<T>> {
       scrollDirection: widget.scrollDirection,
       itemBuilder: (context, position) {
         if (position < _list.length) {
-          return widget.itemBuilder(position, _list[position]);
+          return widget.itemBuilder(position, _list.length, _list[position]);
         } else if (position == _list.length && !_isEndOfList) {
           fetchMore();
           return widget.progress ?? defaultLoading();