我正在尝试构建一个 React Hook,它将在鼠标悬停事件时更改图像。我有下面的代码不起作用。我希望我可以添加一个事件侦听器,然后当 onmouseever 事件触发时,更改图像 src 属性。这是不起作用的代码。
import React, { useState, useEffect, useRef } from "react";
const ImageToggler = ({ primaryImg, mouseOverImg }) => {
const imageRef = useRef(null);
function handleMouseOverHandler() {
console.log("handleMouseOver");
imageRef.current.src = mouseOverImg;
}
useEffect(() => {
// THIS DOES NOT SEEM TO DO ANYTHING
imageRef.current.addEventListener(
"onmouseover",
handleMouseOverHandler,
true
);
}, []);
return (
<img
ref={imageRef}
src={primaryImg}
onMouseOver={() => {
console.log("mouse over....");
}}
alt="image here"
/>
);
};
export default ImageToggler;