实现两个Spinner互相关联

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main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    ><Spinner android:id="@+id/list1"android:layout_width="90px" android:layout_height="42px"android:layout_marginTop="3px"android:layout_marginLeft="60px"/><Spinner android:id="@+id/list2"android:layout_width="90px" android:layout_height="42px"android:layout_marginTop="3px"android:layout_marginLeft="60px"/></LinearLayout>

java代码

public class AndroidTestActivity extends Activity {private Spinner spinner1;private Context context;/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);context = this;spinner1 = (Spinner) findViewById(R.id.list1);        String[] m={"aaa","bbb"};        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,m);        spinner1.setAdapter(adapter);        spinner1.setOnItemSelectedListener(spinnerSelectedListener);}private Spinner.OnItemSelectedListener spinnerSelectedListener = new Spinner.OnItemSelectedListener()      {          public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,                  long arg3) {          String selectedValue = (String)spinner1.getSelectedItem();        Spinner spinner2 = (Spinner) findViewById(R.id.list2);            String[] m={selectedValue};ArrayAdapter<String> adapter = new ArrayAdapter<String>(context,android.R.layout.simple_spinner_item, m);            spinner2.setAdapter(adapter);        }                    public void onNothingSelected(AdapterView<?> arg0) {              // TODO Auto-generated method stub          }             };}