feat: add rotation support to cluster item API#943
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Add rotation parameter to ClusteringMarkerProperties and Clustering functions, allowing per-item and default rotation customization for both cluster and cluster item markers. This follows the same pattern as the existing anchor and zIndex support added in v8.1.0. Closes #942
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…ve in ComposeUiClusterRenderer - Add snapshotFlow observer in ComposeUiClusterRenderer to dynamically update active Marker rotation, anchor, and zIndex across parent recompositions. - Override invalidate in InvalidatingComposeView to ensure ClusteringMarkerProperties updates trigger re-rendering. - Add MarkerClusteringRotationActivity sample demonstrating top-level vs property rotation with dead-center Offset(0.5f, 0.5f) anchoring. - Add GoogleMapViewClusteringTests instrumentation test suite.
…iClusterRenderer (#943) - Inspect child properties in onBeforeClusterRendered and onBeforeClusterItemRendered to set anchor, zIndex, and rotation upon initial marker creation. - Replace linear ViewKey scans in keysToViews with direct O(1) hash map lookups. - Change ViewInfo.view type to InvalidatingComposeView for type safety. - Import snapshotFlow directly to clean up fully-qualified names in init block. TAG=agy CONV=8ec3e54a-53d3-485c-b062-b6f1a534729e
dkhawk
approved these changes
Jul 10, 2026
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Summary
Add rotation parameter support to the cluster item API, allowing users to customize marker rotation for both clustered and non-clustered items.
Changes
rotationfield toClusteringMarkerPropertiesclusterContentRotationandclusterItemContentRotationparameters to allClustering()functionsrememberClusterRenderer()to accept and apply rotation parametersmarkerOptions.rotation()just like regular markersTesting
anchorandzIndexsupportCloses
Closes #942