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Propagate onScroll 

Reviewed By: yungsters

Differential Revision: D4557672

fbshipit-source-id: a265231dbc992a84449e5ae051530f63f7b8efd4
This commit is contained in:
Spencer Ahrens 2017-02-14 18:24:20 -08:00 committed by Facebook Github Bot
parent c6c1c02b75
commit 7cfbb79617
1 changed files with 7 additions and 0 deletions
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7
Libraries/Experimental/VirtualizedList.js
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@ -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);