[firebase_storage]: creationTimeMillis and updatedTimeMillis null on Windows platform about flutterfire

[Lyokone]

Thanks for reporting this was now supported by the CPP SDK. I've created a PR to support it :)

[ciceromsjr]

I could fix it, but I really do not know if it is enough. That's why I didn't make a PR. Maybe it might help fixing it.

On this file:
packages/firebase_storage/firebase_storage/windows/firebase_storage_plugin.cpp

On method ConvertMedadataToPigeon, I added the keys for these fields.

std::string kCacheControlName = "cacheControl"; std::string kContentDispositionName = "contentDisposition"; std::string kContentEncodingName = "contentEncoding"; std::string kContentLanguageName = "contentLanguage"; std::string kContentTypeName = "contentType"; std::string kCreationTimeMillis = "creationTimeMillis"; << std::string kUpdatedTimeMillis = "updatedTimeMillis"; << std::string kCustomMetadataName = "customMetadata"; std::string kMetadataName = "metadata"; std::string kSizeName = "size"; std::string kBucketName = "bucket";

And I did this:

if (meta->creation_time() != 0) { meta_map[flutter::EncodableValue(kCreationTimeMillis)] = flutter::EncodableValue(meta->creation_time()); }

   `if (meta->updated_time() != 0) {
        meta_map[flutter::EncodableValue(kUpdatedTimeMillis)] =
                flutter::EncodableValue(meta->updated_time());
    }`

I don't understand much about C++, but by doing this, I managed to obtain this information. I saw that there are some things related to the fields in the CreateStorageMetadataFromPigeon method, but I don't know what it does.

I really wanted to help by submitting a PR, but I'm not sure if I did it correctly. Maybe this will help.