From 1f18fca7221740cbfe57d54d81a7f276c38902e9 Mon Sep 17 00:00:00 2001
From: Levitating Pineapple <noreply@levitatingpineapple.com>
Date: Thu, 15 Aug 2024 16:06:39 +0300
Subject: [PATCH] chat new message animation

---
 apps/ios/Shared/Views/Chat/ReverseList.swift | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/apps/ios/Shared/Views/Chat/ReverseList.swift b/apps/ios/Shared/Views/Chat/ReverseList.swift
index 4ce6a1a065..6e1e73ca63 100644
--- a/apps/ios/Shared/Views/Chat/ReverseList.swift
+++ b/apps/ios/Shared/Views/Chat/ReverseList.swift
@@ -175,10 +175,13 @@ struct ReverseList<Item: Identifiable & Hashable & Sendable, Content: View>: UIV
             var snapshot = NSDiffableDataSourceSnapshot<Section, Item>()
             snapshot.appendSections([.main])
             snapshot.appendItems(items)
-            dataSource.defaultRowAnimation = .none
-            dataSource.apply(
-                snapshot,
-                animatingDifferences: itemCount != 0 && abs(items.count - itemCount) == 1
+            dataSource.defaultRowAnimation = items.count > itemCount
+            ? .top  // Added items slide in from the bottom (top reversed)
+            : .none // Replacing or removing rows is not animated
+            let countChange = abs(items.count - itemCount)
+            dataSource.apply(snapshot, animatingDifferences:
+                countChange > 0 && // Avoid animating initial load
+                countChange < 5    // Avoid animating page loads
             )
             itemCount = items.count
         }