fix: null pointer exception in ClusterRenderer when continuously updating cluster item values (#623)

mohammad-firmansyah · Goooler · web-flow · commit a1502359c91d · 2025-01-24T10:16:57.000-07:00
* fix : view to be nullable

* fix : put else condition when view.parent is null draw blank bitmap

* Update maps-compose-utils/src/main/java/com/google/maps/android/compose/clustering/ClusterRenderer.kt

Co-authored-by: Zongle Wang &lt;wangzongler@gmail.com&gt;

* Update maps-compose-utils/src/main/java/com/google/maps/android/compose/clustering/ClusterRenderer.kt

Co-authored-by: Zongle Wang &lt;wangzongler@gmail.com&gt;

---------

Co-authored-by: Zongle Wang &lt;wangzongler@gmail.com&gt;
diff --git a/maps-compose-utils/src/main/java/com/google/maps/android/compose/clustering/ClusterRenderer.kt b/maps-compose-utils/src/main/java/com/google/maps/android/compose/clustering/ClusterRenderer.kt
@@ -172,7 +172,9 @@ internal class ComposeUiClusterRenderer<T : ClusterItem>(
         /* AndroidComposeView triggers LayoutNode's layout phase in the View draw phase,
            so trigger a draw to an empty canvas to force that */
         view.draw(fakeCanvas)
-        val viewParent = (view.parent as ViewGroup)
+        val viewParent =
+            view.parent as? ViewGroup ?: return Bitmap.createBitmap(20, 20, Bitmap.Config.ARGB_8888)
+                .let(BitmapDescriptorFactory::fromBitmap)
         view.measure(
             View.MeasureSpec.makeMeasureSpec(viewParent.width, View.MeasureSpec.AT_MOST),
             View.MeasureSpec.makeMeasureSpec(viewParent.height, View.MeasureSpec.AT_MOST),
