expo-sdcard-detector/src/withSDCardDetector.ts

Expo plugin to detect SD card storage paths on Android

import { ConfigPlugin, withMainApplication } from "@expo/config-plugins";

const withSDCardDetector: ConfigPlugin = config => {
  return withMainApplication(config, async config => {
    if (!config.modResults.contents.includes("com.sdcard.SDCardPackage")) {
      config.modResults.contents = config.modResults.contents.replace(
        'import android.app.Application;',
        'import android.app.Application;\nimport com.sdcard.SDCardPackage;'
      );
    }
    return config;
  });
};

export default withSDCardDetector;