Facebook Android SDK request parameters: where find documentation? [closed]

Question

Good evening. I'm developing an android application that uses Facebook SDK. I've no problem with user oauth authentication and I've no problem using the SDK to add a simple status update on the user wall.

Now I'm trying to use more deeply this Facebook Android SDK and I found a really big lack about documentation.

At the moment I'm using this snippet of code to add the user status:

        Bundle params = new Bundle();
    params.putString("message", "my message");
    params.putString("link", "my site url" );
    params.putString("name", "my name");
    params.putString("caption", "my caption" );

    mAsyncRunner.request(REQUEST_WALL_POST, params, HTTP_METHOD_POST, listener, null);

it works pretty well.

Now I want to add more content and attributes to this facebook status. For example (in my scenario) I want to add the user location (taken with Android GPS) to the facebook update. I tried to search into Facebook API Documentation but the only "semi-usefull" thing I found is this: https://developers.facebook.com/docs/reference/api/post/

For what I understand this explain which are a Post's return fields and not fields I can use to create a add-post request.

Anyway I found the "place" field:

place

Location associated with a Post, if any

object containing id and name of Page associated with this location, and a location field containing geographic information such as latitude, longitude, country, and other fields (fields will vary based on geography and availability of information)

I cannot find any kind of working example (or simple an example!!) to understand how to build this field and if I can or not pass to the Android bundle..

Can someone explain me?

UPDATE

I just made a share with SoundHound (a music application) and what I need is to perfeclty do something like it: https://www.facebook.com/emanuele.ricci/timeline/story?ut=64&wstart=1325404800&wend=1328083199&hash=-4777352490458351023

Exactly like it!

UPDATE2

This is the result: https://www.facebook.com/emanuele.ricci/timeline/story?ut=64&wstart=1325404800&wend=1328083199&hash=-1081865809871332449

Perfect!