Posting Text Status Using Facebook API In Android?

I have been searching a lot to find a way to do this. But nothing seems to be working for me.

This is my image button for facebook status post:

This is my mainactivity.java file's corresponding part:

[HIGH]public class MainActivity extends FacebookActivity {
private static final String APP_ID = "XXXXXXXXXXXXXXX";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}

[code]....