【发布时间】:2020-12-13 20:36:55
【问题描述】:
我正在尝试从 API 检索图像并将它们显示在三列网格系统中。当我检索图像时,它们彼此下方显示。 请告知实现这一目标的最佳方法
import React from "react";
import Display from "./Display";
class App extends React.Component {
constructor() {
super();
this.state = {
loading: true,
image: [],
};
}
async componentDidMount() {
const url = "http://jsonplaceholder.typicode.com/photos?_start=0&_limit=10";
const response = await fetch(url);
const data = await response.json();
this.setState({ image: data, loading: false });
console.log(data);
}
render() {
if (this.state.loading) {
return <div> loading ... </div>;
}
if (!this.state.image.length) {
return <div> didnt get an image</div>;
}
return (
<div>
{this.state.image.map((img) => (
<div>
<div>
{" "}
<Display
showImage={img.url}
showTitle={img.title}
showAlbum={img.albumId}
/>{" "}
</div>
<div key={img.id}>
<ul></ul>
</div>
</div>
))}
</div>
);
}
}
export default App;
function Display(props) {
const classes = useStyles();
return (
<div className={classes.root}>
<Grid container spacing={4}>
<Grid item xs={12} sm={6} md={4}>
<CardActionArea>
<CardMedia
component="img"
alt="Contemplative Reptile"
height="200"
width="200"
img
src={props.showImage}
/>
<CardContent>
<Typography gutterBottom variant="h5" component="h2">
{props.showTitle}
</Typography>
<Typography variant="body2" color="textSecondary" component="p">
Album ID: {props.showAlbum}
</Typography>
</CardContent>
</CardActionArea>
<CardActions>
<Button size="small" color="primary">
Share
</Button>
<Button size="small" color="primary">
Learn More
</Button>
</CardActions>
</Grid>
</Grid>
</div>
);
}
export default Display;
在我的 App.js 中,我能够使用地图功能并从数组中获取所有项目,我想我应该修改我的 App.jS 文件以打印出三列中的结果,但我'我不确定。我可以修改显示文件以使每张卡都紧挨着吗?我需要为卡片使用另一个数组吗?
【问题讨论】:
标签: reactjs material-ui