package net.udrunk; import java.util.Observable; import java.util.Observer; import net.udrunk.model.Model; import net.udrunk.model.Model_; import android.os.Bundle; import com.actionbarsherlock.app.SherlockFragment; public class CommonFragment extends SherlockFragment implements Observer { public Model model; @Override public void onCreate(Bundle savedInstanceState) { model = Model_.getInstance_(getActivity()); model.addObserver(this); super.onCreate(savedInstanceState); } @Override public void onDestroy() { model.deleteObserver(this); super.onDestroy(); } @Override public void update(Observable observable, Object data) { } }