1-) Android Yeni -  Spinner combobox kullanımı

sp_sec = (Spinner) findViewById(R.id.sp_sec);

List<String> list=new ArrayList<String>();
list.add("Item 1");
list.add("Item 2");
list.add("Item 3");
list.add("Item 4");
list.add("Item 5");
ArrayAdapter<String> adp1=new ArrayAdapter<String>(this,
        android.R.layout.simple_list_item_1,list);
adp1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
sp_sec.setAdapter(adp1);