react-native: map panGestureHandlerProps.simultaneousHandlers to Gesture.Pan().simultaneousWithExternalGesture to restore simultaneous ScrollView coordination on Android

cursoragent · cursoragent · commit 0d0a73271da5 · 2026-05-20T22:18:18.000Z
diff --git a/packages/design-system-react-native/src/components/BottomSheetDialog/BottomSheetDialog.tsx b/packages/design-system-react-native/src/components/BottomSheetDialog/BottomSheetDialog.tsx
@@ -114,6 +114,17 @@ const applyPanGestureProps = (
     );
   }
 
+  // Map v1 PanGestureHandler prop to v2 Gesture API:
+  // Forward simultaneousHandlers so pan can coordinate with e.g. ScrollView on Android.
+  if (panGestureHandlerProps.simultaneousHandlers !== undefined) {
+    const handlers = Array.isArray(panGestureHandlerProps.simultaneousHandlers)
+      ? panGestureHandlerProps.simultaneousHandlers
+      : [panGestureHandlerProps.simultaneousHandlers];
+    // Use external gesture composition since handler refs typically come from native components (e.g., ScrollView)
+    // Casting to any to support ref types from RNGH v1 prop surface.
+    gesture.simultaneousWithExternalGesture(...(handlers as any[]));
+  }
+
   return gesture;
 };
 
