From b9a1e1a5e6a07174e37d3e17d4a7f94755e050a8 Mon Sep 17 00:00:00 2001
From: Alex Vanyo <vanyo@google.com>
Date: Tue, 16 Jan 2024 11:05:25 -0800
Subject: [PATCH] Replace onSizeChanged with layout

---
 .../com/example/listdetailcompose/ui/ListDetail.kt   | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/CanonicalLayouts/list-detail-compose/app/src/main/java/com/example/listdetailcompose/ui/ListDetail.kt b/CanonicalLayouts/list-detail-compose/app/src/main/java/com/example/listdetailcompose/ui/ListDetail.kt
index c9029f1a1..e65636e73 100644
--- a/CanonicalLayouts/list-detail-compose/app/src/main/java/com/example/listdetailcompose/ui/ListDetail.kt
+++ b/CanonicalLayouts/list-detail-compose/app/src/main/java/com/example/listdetailcompose/ui/ListDetail.kt
@@ -245,16 +245,22 @@ fun ListDetail(
     val minDetailPaneWidth = 300.dp
 
     Box(
-        modifier = modifier.onSizeChanged {
+        modifier = modifier.layout { measurable, constraints ->
+            val placeable = measurable.measure(constraints)
+
             anchoredDraggableState.updateAnchors(
                 newAnchors = DraggableAnchors {
-                    ExpandablePaneState.ListOnly at it.width.toFloat()
-                    ExpandablePaneState.ListAndDetail at it.width.toFloat() / 2f
+                    ExpandablePaneState.ListOnly at placeable.width.toFloat()
+                    ExpandablePaneState.ListAndDetail at placeable.width.toFloat() / 2f
                     ExpandablePaneState.DetailOnly at 0f
                 },
                 // Keep the current target, even if resizing causes the offset to be closer to a different one
                 newTarget = anchoredDraggableState.targetValue
             )
+
+            layout(placeable.width, placeable.height) {
+                placeable.placeRelative(0, 0)
+            }
         }
     ) {
         if (showList && showDetail) {