android conectar xml a classe

[thiagowebm 0]

na primeira e terceira opção troca o layout mas não conecta a classe, na segunda opção trava android.process.error

spinner.setOnItemSelectedListener(new OnItemSelectedListener(){
            Spinner spinner = (Spinner) findViewById(R.id.spinner);
            int check = 0;
                @Override
                public void onItemSelected(AdapterView<?> parent, View view, 
                        int pos, long id) {
                    // TODO Auto-generated method stub
                    check = check + 1;

                    if (check > 1) {
                        int selState = spinner.getSelectedItemPosition();

                        switch (selState) {
                        case 0:
                            setContentView(R.layout.activity_image_gallery);


                            break;
                        case 1:

                              Intent myIntent = new Intent(view.getContext(), MainActivity2.class);
                              startActivityForResult(myIntent, 0);

                            break;
                        case 2:
                            setContentView(R.layout.activity_main2);

                            break;

                        }

                    }
                }

                @Override
                public void onNothingSelected(AdapterView<?> parent) {
                    // Another interface callback
                }

            });

[thiagowebm 0]

resolvi, o problema estava em uma sub classe