Get current scroll position of ScrollView in React Native

If you are working with React Native and need to get the current scroll position of a ScrollView component, you might find it a bit tricky as there is no built-in method to directly access the scroll position. However, there are a couple of ways to achieve this. Let’s explore them below.

Using onScroll event

One way to get the current scroll position is by using the onScroll event provided by the ScrollView component. This event is triggered whenever the scroll position changes. You can access the current scroll position by using the nativeEvent object provided by the event.


import React, { useState } from 'react';
import { ScrollView } from 'react-native';

const MyScrollView = () => {
  const [scrollPosition, setScrollPosition] = useState(0);

  const handleScroll = (event) => {
    const { contentOffset } = event.nativeEvent;
    setScrollPosition(contentOffset.y);
  };

  return (
    
      {/* Your content here */}
    
  );
};

export default MyScrollView;

In the above code snippet, we define a state variable scrollPosition to store the current scroll position. The handleScroll function is called whenever the onScroll event is triggered, and it updates the scrollPosition state with the current scroll position.

Using refs

Another approach to get the scroll position is by using refs. You can create a ref for the ScrollView component and access its contentOffset property to get the current scroll position.


import React, { useRef, useEffect } from 'react';
import { ScrollView } from 'react-native';

const MyScrollView = () => {
  const scrollViewRef = useRef(null);
  const [scrollPosition, setScrollPosition] = useState(0);

  useEffect(() => {
    const { current } = scrollViewRef;
    if (current) {
      setScrollPosition(current.contentOffset.y);
    }
  }, []);

  return (
    
      {/* Your content here */}
    
  );
};

export default MyScrollView;

In the above code snippet, we create a ref scrollViewRef and attach it to the ScrollView component. Inside the useEffect hook, we access the contentOffset property of the ref to get the current scroll position and update the scrollPosition state.

Conclusion

Getting the current scroll position of a ScrollView component in React Native can be achieved using the onScroll event or by using refs. Both methods provide access to the scroll position, allowing you to perform any necessary actions based on the scroll position.

Remember to choose the method that best suits your specific use case and requirements.

Get current scroll position of ScrollView in React Native