Optimize lazy column

2026-11-02 21:32:34 +00:00 · 2022-11-23 17:00:16 +01:00
parent e1798deba2
commit e31131ee69
2 changed files with 28 additions and 3 deletions
@@ -122,7 +122,11 @@ fun RoomListContent(
                        .nestedScroll(nestedScrollConnection),
                    state = lazyListState,
                ) {
-                    items(roomSummaries) { room ->
+                    items(
+                        items = roomSummaries,
+                        contentType = { room -> room.contentType() },
+                        key = { room -> room.key() },
+                    ) { room ->
                        RoomSummaryRow(room = room, onClick = ::onRoomClicked)
                    }
                }
@@ -134,6 +138,9 @@ fun RoomListContent(
    }
 }

+private fun RoomListRoomSummary.key() = id
+private fun RoomListRoomSummary.contentType() = isPlaceholder
+
 private fun LazyListState.isScrolled(): Boolean {
    return firstVisibleItemIndex > 0 || firstVisibleItemScrollOffset > 0
 }