How to integrate Facebook Connect and API with Android Application?
The official Facebook SDK for Android is now available here.
You can read the Facebook official announcement here.
It's still rather rough around the edges.
Check this link,it will help u for your queries http://github.com/facebook/facebook-android-sdk/ this may also help http://developers.facebook.com/blog/post/385
Everything you need is here http://developers.facebook.com/docs/mobile/android/build/
Included when you download the SDK, they have an application Hackbook, which has tons of examples.
first download from http://github.com/facebook/facebook-android-sdk/ and you try from http://www.androidhive.info/2012/03/android-facebook-connect-tutorial/ or https://developers.facebook.com/docs/getting-started/facebook-sdk-for-android/3.0/. you require create your App ID/API Key from https://developers.facebook.com/apps.
来源：https://stackoverflow.com/questions/2498985/how-to-integrate-facebook-connect-with-android