可以使用React的useRef钩子来存储搜索和页面状态,然后根据操作类型来更新状态。下面是示例代码:
import React, { useState, useRef } from 'react';
function MyComponent() {
const [search, setSearch] = useState('');
const [currentPage, setCurrentPage] = useState(0);
const searchRef = useRef('');
const pageRef = useRef(0);
const handleSearch = (event) => {
setSearch(event.target.value);
searchRef.current = event.target.value;
// do search
};
const handlePageChange = (page) => {
setCurrentPage(page);
pageRef.current = page;
// do pagination
};
const handleAction = () => {
// do something
setSearch(searchRef.current);
setCurrentPage(pageRef.current);
// rerender with updated search and page state
};
return (
<>
<input type="text" value={search} onChange={handleSearch} />
<button onClick={() => handlePageChange(currentPage - 1)}>Prev</button>
<button onClick={() => handlePageChange(currentPage + 1)}>Next</button>
<button onClick={handleAction}>Do Action</button>
</>
);
}
在这个示例代码中,我们使用了两个ref来存储搜索和页面状态。无论何时搜索或页面状态被更新,我们都将其存储在对应的ref中。然后,在handleAction函数中,我们将这些ref的值分配给搜索和页面状态变量,并重新渲染组件。这确保了搜索和页面状态在挂钩对组件的重渲染有影响时得到保留。