Lack of unity's description about android develop?

I saw unity3d’s manual pages of official site,

but can’t find some subjects about android develop.

For example, at android official learning site, Developer guides  |  Android Developers

take cover about [Building apps - Connectivity Cloud], [User info Location],

but unity3d’s android page does not provide info about how-to use those mobile features?

Thanks.

Most of those features need to be done with Java plugins, that’s why they aren’t on Unity’s documents.
So you would do them like in those documents you posted and make a jar plugin of it (with eclipse eg.) and the call the plugin in Unity.

You can also suggest native additions in unity feedback. Things like in app purchasing, cloud messaging, etc should be supported by Unity because they’re so integral to mobile games and universally supported on Google’s end.

Thx for reply.

Also [Distribute monetize] section (http://developer.android.com/training/monetization/ads-and-ux.html) should be used via .dll (jar plugin?) ?

Yep, ads are one of the most common things that need a plugin.