Config to change the scrolling anchor (top/bottom) on messages

Author: martinmitrevski

CHANGELOG.md

@@ -3,7 +3,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 # Upcoming
 
-### 🔄 Changed
+### ✅ Added
+- Config to change the scrolling anchor (top/bottom) on messages
 
 # [4.25.0](https://github.com/GetStream/stream-chat-swiftui/releases/tag/4.25.0)
 _December 16, 2022_

Sources/StreamChatSwiftUI/ChatChannel/MessageList/MessageListConfig.swift

@@ -22,7 +22,8 @@ public struct MessageListConfig {
         updateChannelsFromMessageList: Bool = false,
         maxTimeIntervalBetweenMessagesInGroup: TimeInterval = 60,
         cacheSizeOnChatDismiss: Int = 1024 * 1024 * 100,
-        iPadSplitViewEnabled: Bool = true
+        iPadSplitViewEnabled: Bool = true,
+        scrollingAnchor: UnitPoint = .bottom
     ) {
         self.messageListType = messageListType
         self.typingIndicatorPlacement = typingIndicatorPlacement
@@ -38,6 +39,7 @@ public struct MessageListConfig {
         self.maxTimeIntervalBetweenMessagesInGroup = maxTimeIntervalBetweenMessagesInGroup
         self.cacheSizeOnChatDismiss = cacheSizeOnChatDismiss
         self.iPadSplitViewEnabled = iPadSplitViewEnabled
+        self.scrollingAnchor = scrollingAnchor
     }
 
     public let messageListType: MessageListType
@@ -54,6 +56,7 @@ public struct MessageListConfig {
     public let maxTimeIntervalBetweenMessagesInGroup: TimeInterval
     public let cacheSizeOnChatDismiss: Int
     public let iPadSplitViewEnabled: Bool
+    public let scrollingAnchor: UnitPoint
 }
 
 /// Contains information about the message paddings.

Sources/StreamChatSwiftUI/ChatChannel/MessageList/MessageListView.swift

@@ -203,7 +203,7 @@ public struct MessageListView<Factory: ViewFactory>: View, KeyboardReadable {
                             }
                         }
                         withAnimation {
-                            scrollView.scrollTo(scrolledId, anchor: .bottom)
+                            scrollView.scrollTo(scrolledId, anchor: messageListConfig.scrollingAnchor)
                         }
                     }
                 }