How can we integrate Facebook in android?
Don't integrate Facebook API from mobile.
Instead you should create your own web service and put somewhere on the web where you can update API changes more frequently than rolling out new mobile version of your app for each API changes. So the point here is that you keep API calls on the webserver where you can do immediate changes rather than pushing mobile updates through time consuming Markets approval.
Make that go (1) Android phone -> (2) your webserver file with Facebook API --> (3) Facebook Servers. You can find more examples working with Facebook API such as using PHP.
download fbconnect first.
check this.....
you have create a account in developer.facebook.com. after that you get a API Key.
you can add this project with your project
right click your project-> properties->Select Projects tab-> Add Project--> both fbconnect-android and fbconnect-sample.
thats it.
sorry,please refer now from below url http://www.mobisoftinfotech.com/blog/android/845/