List Layout Animations

itemLayoutAnimation lets you define a layout transition that's applied when list items layout changes. You can use one of the predefined transitions like LinearTransition or create your own transition.

Example

import Animated, { LinearTransition } from 'react-native-reanimated';

function App() {
  return (
    <Animated.FlatList
      data={data}
      renderItem={renderItem}
      itemLayoutAnimation={LinearTransition}
    />
  );
}

Remarks

• itemLayoutAnimation works only with a single-column Animated.FlatList, numColumns property cannot be grater than 1.
• You can change the itemLayoutAnimation on the fly or disable it by setting it to undefined.

function App() {
  const [transition, setTransition] = useState(LinearTransition);

  const changeTransition = () => {
    setTransition(
      transition === LinearTransition ? JumpingTransition : LinearTransition
    );
  };

  const toggleTransition = () => {
    setTransition(transition ? undefined : LinearTransition);
  };

  return (
    <Animated.FlatList
      data={data}
      renderItem={renderItem}
      itemLayoutAnimation={transition}
    />
  );
}

• If the list items contain neither a key nor id property (which are used by default by the FlatList keyExtractor to create list item keys), you must provide your own implementation of the keyExtractor function that returns a unique key for each list item.

function App() {
  return (
    <Animated.FlatList
      data={data}
      renderItem={renderItem}
      itemLayoutAnimation={LinearTransition}
      keyExtractor={customKeyExtractor}
    />
  );
}

Platform compatibility

Android	iOS	Web
✅	✅	✅