Finding Absolute Path in Android

I am currently using an SDK that requires absolute path in Android platform,
I need to get a writable path in Android environment at c++ layer,
do we have any API that can handle this kind of issue in UE4.16 ?


4.16, 4.17: FString Path = FPlatformMisc::GamePersistentDownloadDir();

4.18: FString Path = FPaths::ProjectPersistentDownloadDir();