trigger method when end of the feed

Sources/justMUSIC/lib/screens/feed_screen.dart

@@ -25,13 +25,15 @@ class _FeedScreenState extends State<FeedScreen> with SingleTickerProviderStateM
   late Animation<double> animation;
   late List<Post> friendFeed;
   Timer? timer;
-
+  var page = 0;
   late List<Post> discoveryFeed;
   late Tuple2<List<Post>, List<Post>> displayFeed;
   bool isDismissed = true;
   bool choiceFeed = true;
   PageController controller = PageController();
 
+
+
   @override
   void initState() {
     super.initState();
@@ -127,6 +129,14 @@ class _FeedScreenState extends State<FeedScreen> with SingleTickerProviderStateM
         Tuple2(MyApp.postViewModel.postsFriends.reversed.toList(), MyApp.postViewModel.bestPosts.reversed.toList());
     bool empty =
         (choiceFeed == true && displayFeed.item1.isEmpty) || (choiceFeed == false && displayFeed.item2.isEmpty);
+    ScrollController _scrollController = ScrollController();
+    _scrollController.addListener(() {
+      if (_scrollController.position.maxScrollExtent ==
+          _scrollController.position.pixels) {
+        print("fin");
+      }
+    });
+
     return Scaffold(
       resizeToAvoidBottomInset: false,
       backgroundColor: bgColor,
@@ -185,6 +195,7 @@ class _FeedScreenState extends State<FeedScreen> with SingleTickerProviderStateM
                           physics: const BouncingScrollPhysics(parent: AlwaysScrollableScrollPhysics()),
                           clipBehavior: Clip.none,
                           shrinkWrap: false,
+                          controller: _scrollController,
                           itemCount: displayFeed.item1.length,
                           itemBuilder: (BuildContext context, int index) {
                             return Padding(
@@ -213,6 +224,7 @@ class _FeedScreenState extends State<FeedScreen> with SingleTickerProviderStateM
                         triggerMode: RefreshIndicatorTriggerMode.onEdge,
                         onRefresh: _refresh,
                         child: ListView.builder(
+                          controller: _scrollController,
                           physics: const BouncingScrollPhysics(parent: AlwaysScrollableScrollPhysics()),
                           clipBehavior: Clip.none,
                           shrinkWrap: false,