useMediaQueryのTips

1.タッチデバイスであるか

export const isTouchDevice(){
  return window.matchMedia('(hover: none)').matches;
}

2.useMediaQueryフック

'use client';

import { useState, useEffect } from 'react';

export const useMediaQuery = (query: string) => {
  const [matches, setMatches] = useState(false);

  useEffect(() => {
    const mediaQueryList = window.matchMedia(query);
    setMatches(mediaQueryList.matches);

    const handleChange = (e: MediaQueryListEvent) => {
      setMatches(e.matches);
    };

    mediaQueryList.addEventListener('change', handleChange);

    return () => {
      mediaQueryList.removeEventListener('change', handleChange);
    };
  }, [query]);

  return matches;
};

• SP、Tablet、PCの判断

const isSp = !useMediaQuery('(min-width: 768px)');
const isPc = useMediaQuery('(min-width: 1024px)');
const isTablet = useMediaQuery('(min-width: 768px)') && !isPc;

参考記事

• Detecting touch devices and detecting 'can hover' with JavaScript in 2020