Add Utils.channelListConfig.showChannelListDividerOnLastItem (#869)

* Add `Utils.channelListConfig.showChannelListDividerOnLastItem`

* Update CHANGELOG.md

Author: nuno-vieira

CHANGELOG.md

@@ -3,6 +3,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 # Upcoming
 
+### ✅ Added
+- Add `Utils.channelListConfig.showChannelListDividerOnLastItem` [#869](https://github.com/GetStream/stream-chat-swiftui/pull/869)
+
 ### 🐞 Fixed
 - Fix tapping on invisible areas on iOS 26 [#868](https://github.com/GetStream/stream-chat-swiftui/pull/868)
 

Sources/StreamChatSwiftUI/ChatChannelList/ChannelListConfig.swift

@@ -6,12 +6,22 @@ import Foundation
 
 /// A configuration for channel lists.
 public struct ChannelListConfig {
-    public init(messageRelativeDateFormatEnabled: Bool = false) {
+    public init(
+        messageRelativeDateFormatEnabled: Bool = false,
+        showChannelListDividerOnLastItem: Bool = true
+    ) {
         self.messageRelativeDateFormatEnabled = messageRelativeDateFormatEnabled
+        self.showChannelListDividerOnLastItem = showChannelListDividerOnLastItem
     }
 
     /// If true, the timestamp format depends on the time passed.
     ///
     /// Different date formats are used for today, yesterday, last 7 days, and older dates.
     public var messageRelativeDateFormatEnabled: Bool
+
+    /// A boolean indicating whether the channel list should show a divider
+    /// on the last item.
+    ///
+    /// By default, all items in the channel list have a divider, including the last item.
+    public var showChannelListDividerOnLastItem: Bool
 }

Sources/StreamChatSwiftUI/ChatChannelList/ChatChannelList.swift

@@ -109,6 +109,7 @@ public struct ChannelList<Factory: ViewFactory>: View {
 /// LazyVStack displaying list of channels.
 public struct ChannelsLazyVStack<Factory: ViewFactory>: View {
     @Injected(\.colors) private var colors
+    @Injected(\.utils) private var utils
 
     private var factory: Factory
     var channels: LazyCachedMapCollection<ChatChannel>
@@ -183,7 +184,11 @@ public struct ChannelsLazyVStack<Factory: ViewFactory>: View {
                     }
                 }
 
-                factory.makeChannelListDividerItem()
+                let isLastItem = channels.last?.cid == channel.cid
+                let shouldRenderLastItemDivider = utils.channelListConfig.showChannelListDividerOnLastItem
+                if !isLastItem || (isLastItem && shouldRenderLastItemDivider) {
+                    factory.makeChannelListDividerItem()
+                }
             }
 
             factory.makeChannelListFooterView()

StreamChatSwiftUITests/Tests/ChatChannelList/ChatChannelListView_Tests.swift

@@ -39,6 +39,41 @@ class ChatChannelListView_Tests: StreamChatTestCase {
         assertSnapshot(matching: view, as: .image(perceptualPrecision: precision))
     }
 
+    func test_chatChannelListView_showChannelListDividerOnLastItem_snapshot() {
+        // Given
+        let controller = ChatChannelListController_Mock.mock(client: chatClient)
+        controller.simulateInitial(
+            channels: [
+                .mock(cid: .unique, name: "Test 1"),
+                .mock(cid: .unique, name: "Test 2"),
+                .mock(cid: .unique, name: "Test 3")
+            ],
+            state: .initialized
+        )
+
+        // When enabled
+        let utils = Utils(channelListConfig: .init(showChannelListDividerOnLastItem: true))
+        streamChat = StreamChat(chatClient: chatClient, utils: utils)
+        let view = ChatChannelListView(
+            viewFactory: DefaultViewFactory.shared,
+            channelListController: controller
+        )
+        .applyDefaultSize()
+        // Then
+        assertSnapshot(matching: view, as: .image(perceptualPrecision: precision), named: "enabled")
+
+        // When disabled
+        let utilsWithoutLastItemDivider = Utils(channelListConfig: .init(showChannelListDividerOnLastItem: false))
+        streamChat = StreamChat(chatClient: chatClient, utils: utilsWithoutLastItemDivider)
+        let viewWithoutLastItemDivider = ChatChannelListView(
+            viewFactory: DefaultViewFactory.shared,
+            channelListController: controller
+        )
+        .applyDefaultSize()
+        // Then
+        assertSnapshot(matching: viewWithoutLastItemDivider, as: .image(perceptualPrecision: precision), named: "disabled")
+    }
+
     func test_chatChannelListViewSansNavigation_snapshot() {
         // Given
         let controller = makeChannelListController()