public class MainFragment extends Fragment {

    private static final int REQUEST_CODE_DETAILS_ACTIVITY = 1234;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_main, container, false);
        //return inflater.inflate(R.layout.fragment_screen2, container, false);
    }

    @Override
    public void onActivityCreated(Bundle savedState) {
        super.onActivityCreated(savedState);

        Button b1 = (Button) getActivity().findViewById(R.id.button1);
        b1.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View view) {
                onClickMethod(R.id.button1);
            }
        });

       // Button b2 = (Button) getActivity().findViewById((R.id.button2);
        //b2.setOnClickListener(new View.);
    }

    public void onClickMethod(int id) {
        // int id = R.id.button1;
        Toast.makeText(getActivity(), "does the id get passed?" +id , Toast.LENGTH_SHORT).show();

        if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
            int testint = 323;
            FragScreen2 frag = (com.example.engg6600.fragtest2.FragScreen2) getFragmentManager().findFragmentById(R.id.fragment_screen2);
            //frag.changeText(id);
            try {
                ((FragScreen2)getFragmentManager().findFragmentById(R.id.fs2)).testMethod(testint);
            } catch (Exception e) {
                Toast.makeText(getActivity(), "breaks" + testint, Toast.LENGTH_SHORT).show();
            }
            //Intent goS2 = new Intent(getActivity(), Screen2.class);
            //goS2.putExtra("buttonNumber", id);

//            FragScreen2 frag = (FragScreen2) getFragmentManager().findFragmentById(R.id.fragment_screen2);
//            Toast.makeText(getActivity(), "before to frag.changetext(id)", Toast.LENGTH_LONG).show();
//            frag.changeText(id);
//            Toast.makeText(getActivity(), "sent to frag.changetext(id)", Toast.LENGTH_LONG).show();
        } else{

           // String toastString = Integer.toString(id);
            Toast.makeText(getActivity(), "portrait mode id" +id, Toast.LENGTH_LONG).show();
            Intent goS2 = new Intent(getActivity(), Screen2.class);
            goS2.putExtra("buttonNumber", id);
            startActivityForResult(goS2, REQUEST_CODE_DETAILS_ACTIVITY);
        }
    }

}

public class FragScreen2 extends Fragment {

    private static final String[] SCREENTEXT ={
            "You have selected button 1",
            "You have selected button 2",
            "You have selected button 3",
            "You have selected button 4",
            "No selection"

    };

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_screen2, container, false);
    }

    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        // pull out the country ID to show from the activity's intent
        Intent intent = getActivity().getIntent();
        int id = intent.getIntExtra("buttonNumber", 234324);
        Toast.makeText(getActivity(), "fragscreen 2 id=" +id, Toast.LENGTH_LONG).show();
        changeText(id);
    }

    public void changeText(int id) {
        int buttonNumber=4;
        Toast.makeText(getActivity(), "button1 of R.id" + Integer.toString(R.id.button1), Toast.LENGTH_SHORT).show();
        if (id==R.id.button1) {
            buttonNumber =0;
        } else if (id==R.id.button2) {
            buttonNumber =1;
        } else if (id==R.id.button3) {
            buttonNumber =2;
        } else if (id==R.id.button4) {
            buttonNumber =3;
        }
        String text = SCREENTEXT[buttonNumber];
        TextView tv = (TextView)getActivity().findViewById(R.id.textscreen2);
        tv.setText(text);

    }

    public void testMethod (int integerVar) {
        Toast.makeText(getActivity(), "testmethod int=" + integerVar, Toast.LENGTH_SHORT).show();
    }
}