useAnimatedRef

useAnimatedRef lets you get a reference of a view. Used alongside measure, scrollTo, and useScrollViewOffset functions.

You need to pass the object defined using useAnimatedRef to the ref property of a component.

Reference

import { useAnimatedRef } from 'react-native-reanimated';

function App() {
  const animatedRef = useAnimatedRef();

  return <Animated.View ref={animatedRef} />;
}

Type definitions

function useAnimatedRef<T extends Component>(): AnimatedRef<T>;

Arguments

useAnimatedRef doesn't take any arguments.

Returns

useAnimatedRef returns an object with a current property which contains an instance of a component.

Example

export default function App() {
  const animatedRef = useAnimatedRef<Animated.View>();

  return (
    <View style={styles.container}>
      <Animated.View
        ref={animatedRef}
        style={styles.box}
        onLayout={() => {
          // Returns a reference to the component
          const component = animatedRef.current;
        }}
      />
    </View>
  );
}

Remarks

• You can use useAnimatedRef to reference not only the Animated versions of components, but any React Native component.

• The value stored in the current property becomes available after the component is mounted.

function App() {
  const animatedRef = useAnimatedRef();

  console.log(animatedRef.current); // 🚩 Returns null

  useEffect(() => {
    console.log(animatedRef.current); // ✅ Returns the component
  }, []);

  return <View ref={animatedRef} />;
}

Alternatively, you can get the value stored in the current in event handlers or in a onLayout property.

• The value stored in the current property isn't available on the UI thread.

Platform compatibility

Android	iOS	Web
✅	✅	✅

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