使用material-ui的API，如何在体内设置背景图像？

Question

我想使用material-ui-next的CSS-in-JS，withStyles还是主题在Web应用程序的主体中设置背景图像？我希望尽可能避免使用外部CSS文件。

Answer 1

您可以使用“ @ material-ui / core / styles”中的withStyles通过“ @global”将css注入外部范围

import React, { Fragment } from "react";
import CssBaseline from "@material-ui/core/CssBaseline";
import { withStyles } from "@material-ui/core/styles";
import Main from "./Main";

const styles = theme => ({
	"@global": {
		body: {
			backgroundImage: "url('/media/landing.jpg')",
			backgroundRepeat: "no-repeat",
			backgroundPosition: "center center",
			backgroundSize: "cover",
			backgroundAttachment: "fixed",
			height: "100%"
		},
		html: {
			height: "100%"
		},
		"#componentWithId": {
			height: "100%"
		}
	}
});

const App = () => {
	return (
		<Fragment>
			<CssBaseline />
			<Main />
		</Fragment>
	);
};

export default withStyles(styles)(App);