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Abhinandan-Kushwaha avatar Abhinandan-Kushwaha commented on September 26, 2024

Hi @Punit-Wemotive 👋
Thanks for bringing this up.

The onScroll event is fired multiple times. So I have added the prop onMomentumScrollEnd which gets fired once the scroll is completed. It is available from version 1.4.10 onwards.

Here's an example-

const data= [
  {value:10, label:'2'},
  {value:15, label:'3'},
  {value:18, label:'4'},
  {value:15, label:'5'},
  {value:12, label:'6'},
  {value:8, label:'7'},
  {value:10, label:'2'},
  {value:15, label:'3'},
  {value:18, label:'4'},
  {value:15, label:'5'},
  {value:12, label:'6'},
  {value:8, label:'7'},
]

let contentOffset;

const ref = useRef(null);

return (
  <LineChart
    data={data}
    spacing={60}
    scrollRef={ref}
    onScroll={(event)=>{
      contentOffset = event.nativeEvent.contentOffset
    }}
    onMomentumScrollEnd={()=>{
      Alert.alert('X', Math.round(contentOffset.x).toString())
    }}
  />
)

The output of the above code is-

onMomentumScroll.mov

Please use the latest version of the library.
I hope it helps!

from react-native-gifted-charts.

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