我最近用来react-virtualized
List
显示固定高度、可变宽度的图像卡行,效果很好。
我List
rowRenderer
使用一组图像卡元素行。也就是说,一个 React 组件数组的数组,如 JSX。
请参阅我的最终函数 ,cardsRows
了解我如何根据元素宽度和屏幕宽度构建行。
这是它的外观:
希望这可以帮助!
我的一些代码片段:
import {AutoSizer, List} from 'react-virtualized';
...
updateDimensions() {
this.setState({
screenWidth: window.innerWidth,
});
}
componentDidMount() {
window.addEventListener("resize", this.updateDimensions);
}
componentDidUpdate(prevProps, prevState) {
const props = this.props;
const state = this.state;
if (JSON.stringify(props.imageDocs) !== JSON.stringify(prevProps.imageDocs) || state.screenWidth !== prevState.screenWidth)
this.setState({
cardsRows: cardsRows(props, state.screenWidth),
});
}
rowRenderer({key, index, style, isScrolling}) {
if (!this.state.cardsRows.length)
return '';
return (
<div id={index} title={this.state.cardsRows[index].length} key={key} style={style}>
{this.state.cardsRows[index]}
</div>
);
}
...
render() {
return (
<div style={styles.subMain}>
<AutoSizer>
{({height, width}) => (<List height={height}
rowCount={this.state.cardsRows.length}
rowHeight={164}
rowRenderer={this.rowRenderer}
width={width}
overscanRowCount={2}
/>
)}
</AutoSizer>
</div>
);
}
...
const cardsRows = (props, screenWidth) => {
const rows = [];
let rowCards = [];
let rowWidth = 0;
const distanceBetweenCards = 15;
for (const imageDoc of props.imageDocs) {
const imageWidth = getWidth(imageDoc);
if (rowWidth + distanceBetweenCards * 2 + imageWidth <= screenWidth) {
rowCards.push(cardElement(imageDoc));
rowWidth += distanceBetweenCards + imageWidth;
}
else {
rows.push(rowCards);
rowCards = [];
rowWidth = distanceBetweenCards;
}
}
if (rowCards.length) {
rows.push(rowCards);
}
return rows;
};
const styles = {
subMain: {
position: 'absolute',
display: 'block',
top: 0,
right: 0,
left: 0,
bottom: 0,
}
};