object-c support?

[sixsir]

[!] Unable to determine Swift version for the following pods:

- `flutter_share_me` does not specify a Swift version and none of the targets (`Runner`) integrating it have the `SWIFT_VERSION` attribute set. Please contact the author or set the
`SWIFT_VERSION` attribute in at least one of the targets that integrate this pod.

Error output from CocoaPods: ↳

[!] Automatically assigning platform `iOS` with version `13.0` on target `Runner` because no platform was specified. Please specify a platform for this target in your Podfile. See
`https://guides.cocoapods.org/syntax/podfile.html#platform`.