如何在react-virtualized列表中测量行高

问题描述

我有点不确定如何使用根据文档说它可以与List组件一起使用但我没有想法这个例子实际上是如何工作的......

I have looked at using CellMeasurer as per the docs which says it can be used with the List component but I have no idea how this example actually works...

我也试图弄清楚它是如何在但也达到了死胡同。

I've also tried to work out how it has been achieved in the demo code but have also reached a dead end.

有人可以帮助我如何测量DOM以动态获取每个物品的高度。

Can someone please assist me on how I would measure the DOM to get each items height dynamically.

推荐答案

对不起，您发现文档令人困惑。我会尝试更新它们以使其更清晰。希望这会有所帮助：

Sorry you found the docs to be confusing. I will try to update them to be clearer. Hopefully this will help:

import { CellMeasurer, List } from 'react-virtualized';

function renderList (listProps) {
  return (
    <CellMeasurer
      cellRenderer={
        // CellMeasurer expects to work with a Grid
        // But your rowRenderer was written for a List
        // The only difference is the named parameter they
        // So map the Grid params (eg rowIndex) to List params (eg index)
        ({ rowIndex, ...rest }) => listProps.cellRenderer({ index: rowIndex, ...rest })
      }
      columnCount={1}
      rowCount={listProps.rowCount}
      width={listProps.width}
    >
      {({ getRowHeight, setRef }) => (
        <List
          {...listProps}
          ref={setRef}
          rowHeight={getRowHeight}
        />
      )}
    </CellMeasurer>
  )
}

还有此组件的演示显示它是如何使用的。

There are also demos of this component here showing how it's used.

这篇关于如何在react-virtualized列表中测量行高的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！