Scroll to Message

lib/provider/chat_provider_model.dart

@@ -1320,21 +1320,15 @@ class ChatProviderModel with ChangeNotifier, DiagnosticableTreeMixin {
   void scrollToMsg(SingleUserChatModel data) {
     if (data.userChatReplyResponse != null && data.userChatReplyResponse!.userChatHistoryId != null) {
       int index = userChatHistory.indexWhere((SingleUserChatModel element) => element.userChatHistoryId == data.userChatReplyResponse!.userChatHistoryId);
-      double contentSize = scrollController.position.viewportDimension + scrollController.position.maxScrollExtent;
-      double target = contentSize * index / userChatHistory.length;
-      scrollController.position.animateTo(
-        target,
-        duration: const Duration(seconds: 1),
-        curve: Curves.easeInOut,
-      );
-
-      // scrollController.scrollTo(index: 150, duration: Duration(seconds: 1));
-      // scrollController.animateTo(offset, duration: duration, curve: curve);
+      if (index >= 1) {
+        double contentSize = scrollController.position.viewportDimension + scrollController.position.maxScrollExtent;
+        double target = contentSize * index / userChatHistory.length;
+        scrollController.position.animateTo(
+          target,
+          duration: const Duration(seconds: 1),
+          curve: Curves.easeInOut,
+        );
+      }
     }
-    // scrollController.animateTo(
-    //   scrollController.position.maxScrollExtent,
-    //   duration: const Duration(milliseconds: 100),
-    //   curve: Curves.easeOut,
-    // );
   }
 }