Remix 如何接入 MUI 组件库，MUI 官网提供了一个 Remix 接入 MUI 的例子，用的是老的 Remix版本，如何接入新的 Vite 版本呢？

由于 MUI 支持 SSR，只需要改造对应的 Client 和 Server 即可实现。安装 MUI 组件组件库，修改对应的 Client/Server 文件，代码如下：

安装 MUI

npm install @mui/material @emotion/react @emotion/styled @mui/icons-material

创建 MUI Provider

import { CacheProvider } from "@emotion/react";

import { ThemeProvider } from "@mui/material";
import theme from "./theme";
import createCache from "@emotion/cache";

function createEmotionCache() {
  return createCache({ key: "css" });
}

export function MuiProvider({ children }: { children: React.ReactNode }) {
  const cache = createEmotionCache();

  return (
    <CacheProvider value={cache}>
      <ThemeProvider theme={theme}>{children}</ThemeProvider>
    </CacheProvider>
  );
}

修改 client、server

### entry.client.tsx
/**
 * By default, Remix will handle hydrating your app on the client for you.
 * You are free to delete this file if you'd like to, but if you ever want it revealed again, you can run `npx remix reveal` ✨
 * For more information, see https://remix.run/file-conventions/entry.client
 */

import { RemixBrowser } from "@remix-run/react";
import { startTransition, StrictMode } from "react";
import { hydrateRoot } from "react-dom/client";
import { MuiProvider } from "./mui/MuiProvider";

startTransition(() => {
  hydrateRoot(
    document,
    <StrictMode>
      <MuiProvider>
        <RemixBrowser />
      </MuiProvider>
    </StrictMode>
  );
});

### entry.server.tsx
/**
 * By default, Remix will handle generating the HTTP Response for you.
 * You are free to delete this file if you'd like to, but if you ever want it revealed again, you can run `npx remix reveal` ✨
 * For more information, see https://remix.run/file-conventions/entry.server
 */

import { PassThrough } from "node:stream";

import type { AppLoadContext, EntryContext } from "@remix-run/node";
import { createReadableStreamFromReadable } from "@remix-run/node";
import { RemixServer } from "@remix-run/react";
import { isbot } from "isbot";
import { renderToPipeableStream } from "react-dom/server";
import { MuiProvider } from "./mui/MuiProvider";

const ABORT_DELAY = 5_000;

export default function handleRequest(
  request: Request,
  responseStatusCode: number,
  responseHeaders: Headers,
  remixContext: EntryContext,
  // This is ignored so we can keep it in the template for visibility.  Feel
  // free to delete this parameter in your app if you're not using it!
  // eslint-disable-next-line @typescript-eslint/no-unused-vars
  loadContext: AppLoadContext
) {
  return isbot(request.headers.get("user-agent") || "")
    ? handleBotRequest(
        request,
        responseStatusCode,
        responseHeaders,
        remixContext
      )
    : handleBrowserRequest(
        request,
        responseStatusCode,
        responseHeaders,
        remixContext
      );
}

function handleBotRequest(
  request: Request,
  responseStatusCode: number,
  responseHeaders: Headers,
  remixContext: EntryContext
) {
  return new Promise((resolve, reject) => {
    let shellRendered = false;
    const { pipe, abort } = renderToPipeableStream(
      <RemixServer
        context={remixContext}
        url={request.url}
        abortDelay={ABORT_DELAY}
      />,
      {
        onAllReady() {
          shellRendered = true;
          const body = new PassThrough();
          const stream = createReadableStreamFromReadable(body);

          responseHeaders.set("Content-Type", "text/html");

          resolve(
            new Response(stream, {
              headers: responseHeaders,
              status: responseStatusCode,
            })
          );

          pipe(body);
        },
        onShellError(error: unknown) {
          reject(error);
        },
        onError(error: unknown) {
          responseStatusCode = 500;
          // Log streaming rendering errors from inside the shell.  Don't log
          // errors encountered during initial shell rendering since they'll
          // reject and get logged in handleDocumentRequest.
          if (shellRendered) {
            console.error(error);
          }
        },
      }
    );

    setTimeout(abort, ABORT_DELAY);
  });
}

function handleBrowserRequest(
  request: Request,
  responseStatusCode: number,
  responseHeaders: Headers,
  remixContext: EntryContext
) {
  return new Promise((resolve, reject) => {
    let shellRendered = false;
    const { pipe, abort } = renderToPipeableStream(
      <MuiProvider>
        <RemixServer
          context={remixContext}
          url={request.url}
          abortDelay={ABORT_DELAY}
        />
      </MuiProvider>,
      {
        onShellReady() {
          shellRendered = true;
          const body = new PassThrough();
          const stream = createReadableStreamFromReadable(body);

          responseHeaders.set("Content-Type", "text/html");

          resolve(
            new Response(stream, {
              headers: responseHeaders,
              status: responseStatusCode,
            })
          );

          pipe(body);
        },
        onShellError(error: unknown) {
          reject(error);
        },
        onError(error: unknown) {
          responseStatusCode = 500;
          // Log streaming rendering errors from inside the shell.  Don't log
          // errors encountered during initial shell rendering since they'll
          // reject and get logged in handleDocumentRequest.
          if (shellRendered) {
            console.error(error);
          }
        },
      }
    );

    setTimeout(abort, ABORT_DELAY);
  });
}

主要用了 ThemeProvider，有了 ThemeProvider，Theme的配置就可以传递到组件了。完整的项目，可以访问 git https://github.com/sjwan/remix-mui。

项目中用加了 meta theme-color，有了这个主题颜色，浏览器的整体颜色就会一起变化，IOS 15 以上的系统浏览器 Safari 支持这个效果，macos 并不支持。