您可以使用subscribe选项通知React Navigation有关传入链接的信息：

const linking = {
  // Custom susbcription to handle incoming links
  subscribe(listener) {
    branch.subscribe(({ error, params, uri }) => {
      if (error) {
        console.error('Error from Branch: ' + error);
        return;
      }

      if (params['+non_branch_link']) {
        const nonBranchUrl = params['+non_branch_link'];
        // Route non-Branch URL if appropriate.
        return;
      }

      if (!params['+clicked_branch_link']) {
        // Indicates initialization success and some other conditions.
        // No link was opened.
        return;
      }

      // A Branch link was opened
      const url = params.$canonical_url;

      listener(url);
    });

    return () => {
      // Clean up the event listeners
      branch.unsubscribe();
    };
  },
  // Options such as prefixes, screens config etc.
  // ...
};

文件：https://reactnavigation.org/docs/deep-linking/#third-party-integrations

const linking = {
  // Custom susbcription to handle incoming links
  subscribe(listener) {
    branch.subscribe(({ error, params, uri }) => {
      if (error) {
        console.error('Error from Branch: ' + error);
        return;
      }

      if (params['+non_branch_link']) {
        const nonBranchUrl = params['+non_branch_link'];
        // Route non-Branch URL if appropriate.
        return;
      }

      if (!params['+clicked_branch_link']) {
        // Indicates initialization success and some other conditions.
        // No link was opened.
        return;
      }

      // A Branch link was opened
      const url = params.$canonical_url;

      listener(url);
    });

    return () => {
      // Clean up the event listeners
      branch.unsubscribe();
    };
  },
  // Options such as prefixes, screens config etc.
  // ...
};



//my code of generating a deep link url 
const onShare = async () => {
  const ProfileDeepLinkData = {
    $og_title: "My Profile",
    $og_description: "Welcome to My App",
    // $og_image_url: '<YOUR_PAGE_IMAGE_URL>',
    customData: {
      screen: "vendorProfile",
    },
  }
  const branchUniversalObject = await Branch.createBranchUniversalObject(
    "hello",
    ProfileDeepLinkData,
  )

  const { url } = await branchUniversalObject.generateShortUrl()
  console.log(url)
  // setDeepLink(url)
  // readLink()
  try {
    const result = await Share.share({
      message: url,
      url: url,
    })
    if (result.action === Share.sharedAction) {
      if (result.activityType) {
        console.log(result.activityType)
        // shared with activity type of result.activityType
      } else {
        // shared
      }
    } else if (result.action === Share.dismissedAction) {
      // dismissed
    }
  } catch (error: any) {
    Alert.alert(error.message)
  }
}