如何去掉Spinner旁边的按钮

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.SpinnerAdapter;
public class MySpinner extends Activity {    //data that will be used as a spinner options
    private static String data[] = {"one", "two", "three"};    /** Called when the activity is first created. */  
     @Override   
     public void onCreate(Bundle savedInstanceState)
       {       
          super.onCreate(savedInstanceState);
          //main.xml file contains spinner       
          setContentView(R.layout.main);
          Spinner spinner = (Spinner) findViewById(R.id.spinner);     
          //create your own adapter       
          MySpinnerAdapter adapter = new MySpinnerAdapter(this,R.layout.custom_spinner_row,R.id.text, data );
          //set your custom adapter       
           spinner.setAdapter( adapter ); 
        }  
         private class MySpinnerAdapter extends ArrayAdapter
         {     
           public MySpinnerAdapter(Context context, int resource, int textViewResourceId, String[] objects)
             {  super(context, resource, textViewResourceId, objects);    
              }         
          }
 
R.layout.custom_spinner_row是只含有一个linear并包含一个叫text的文本框
如果你想做的更好看些 ，那你还的重写 getView() method