Example USing ScrollTo React NAtive - FoxDream

  loadMoreData=({layoutMeasurement, contentOffset, contentSize})=>{
    const {props,state}=this;
    const paddingToBottom = moderateScale(100)
    const isBootom = layoutMeasurement.height + contentOffset.y >=
      contentSize.height - paddingToBottom;
    if(isBootom ){
        //do somethinge
    }
}

//on scrollView

<ScrollView style={css.scroll}
     scrollEventThrottle={400}
     onScroll={({nativeEvent}) => {
        this.loadMoreData(nativeEvent);
     }}
</ScrollView>