@fruits-chain/react-native-xiaoshu/lib/module/hooks/useDestroyed.js

React Native UI library

import { useRef, useCallback, useEffect } from 'react';
/**
 * 组件是否已经被销毁了
 */

const useDestroyed = () => {
  const DestroyedRef = useRef(true);
  const getDestroyed = useCallback(() => DestroyedRef.current, []);
  useEffect(() => {
    DestroyedRef.current = false;
    return () => {
      DestroyedRef.current = true;
    };
  }, []);
  return getDestroyed;
};

export default useDestroyed;
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