getExternalStorageDirectories method
Implementation
@override
Future<List<String>?> getExternalStorageDirectories() async {
final List externalStorageDirs =
await methodChannel.invokeMethod('getExternalStorageDirectories');
List<String> storageInfos = externalStorageDirs
.map((storageInfoMap) => _ExStoragePath.getRootDir(storageInfoMap))
.toList();
return storageInfos;
}