public class MainActivity extends Activity {

private Spinner spinner=null;

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

spinner=(Spinner)findViewById(R.id.city);

//参数一、指上下文对象 参数二、引用string中定义的数组

//参数三、指定spinner的样式      系统自带的

ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,

R.array.city,android.R.layout.simple_spinner_item);

//spinner当中每个条目的样式 同样是系统自带的

adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

spinner.setAdapter(adapter);

spinner.setPrompt("市");

//为spinner绑定监听器

spinner.setOnItemSelectedListener(new SpinnerOnSelectedListener());

}

//监听器

class SpinnerOnSelectedListener implements OnItemSelectedListener{

@Override

public void onItemSelected(AdapterView<?> adapterView, View view, int Position,

long id) {

String selected=adapterView.getItemAtPosition(Position).toString();

System.out.println(selected);

}

@Override

public void onNothingSelected(AdapterView<?> arg0) {

// TODO Auto-generated method stub

System.out.println("nothing selected");

}

}

}