This is a sample app for integrating Facebook in android.
This will show you how to manage session(is session expired or not), how to handle it.
You are able to post on your own wall, with Title, Message, Link of app, Image and Properties of particular app.
You just have to provide your Facebook app id.
Here is the source code, Android Facebook Demo
Rahul Upadhyay's Blog 
Rahul this is wonderful example… that shows how to start with FB.. Jounrally i doesnt believe to say Thanks… but now Thanks a lot.. for such a code
Hey… this is not a simple… its a huge meaning with simple code..
🙂
wow thanks rehul its working ..
thanks again like your blog i alway connected.
Your welcome buddy 🙂
using this code,just open FB and get dialog,but not showing post in FB, pls help me…
Hello Ketan,
That code is still working. Please tell me what are you doing exactly.