btnBattle.setOnClickListener(new OnClickListener() {

       public void onClick(View v) {


        textview_id.setText("You have killed "+ spinnerMonster.getSelectedItem().toString());

                    }
                });

spn.setOnItemSelectedListener(new OnItemSelectedListener() {


        public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {


        }