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Propagate onScroll

Reviewed By: yungsters

Differential Revision: D4557672

fbshipit-source-id: a265231dbc992a84449e5ae051530f63f7b8efd4
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sahrens authored and facebook-github-bot committed Feb 15, 2017
1 parent c6c1c02 commit 7cfbb79617e7455fc2c9d1fb2e179b3d5844880b
Showing with 7 additions and 0 deletions.
  1. +7 −0 Libraries/Experimental/VirtualizedList.js
@@ -237,6 +237,10 @@ class VirtualizedList extends React.PureComponent {
constructor(props: Props) {
super(props);
invariant(
!props.onScroll || !props.onScroll.__isNative,
'VirtualizedList does not support AnimatedEvent with onScroll and useNativeDriver',
);
this._updateCellsToRenderBatcher = new Batchinator(
this._updateCellsToRender,
this.props.updateCellsBatchingPeriod,
@@ -484,6 +488,9 @@ class VirtualizedList extends React.PureComponent {
};
_onScroll = (e: Object) => {
if (this.props.onScroll) {
this.props.onScroll(e);
}
const timestamp = e.timeStamp;
const visibleLength = this._selectLength(e.nativeEvent.layoutMeasurement);
const contentLength = this._selectLength(e.nativeEvent.contentSize);

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