[Home](./index.md) > [@snowplow/react-native-tracker](./react-native-tracker.md) > [ScrollChangedProps](./react-native-tracker.scrollchangedprops.md) ## ScrollChangedProps type Event tracked when a scroll view's scroll position changes. If screen engagement tracking is enabled, the scroll changed events will be aggregated into a `screen_summary` entity. Schema: `iglu:com.snowplowanalytics.mobile/scroll_changed/jsonschema/1-0-0` Signature: ```typescript export declare type ScrollChangedProps = { yOffset?: number; xOffset?: number; viewHeight?: number; viewWidth?: number; contentHeight?: number; contentWidth?: number; }; ```