求助呀，android怎么实现级联查询，最好有个实例，妹纸谢过！！！
------解决方案--------------------
网上找的代码,看了一下,应该可以.参考一下吧.
主要看onItemSelected()方法部分,这部分代码是当前一个Spinner切换的时候刷新第二个Spinner,希望对你有帮助
- Java code
import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Spinner; import android.widget.AdapterView.OnItemSelectedListener; public class cityset extends Activity{ private String[] province = new String[] {"直辖市", "特别行政区","黑龙江"}; private String[] city = new String[]{"北京","上海","天津","重庆"}; private String[][] pandc = new String[][]{{"北京","上海","天津","重庆"},{"香港","澳 门"},{"哈尔滨","齐齐哈尔","牡丹江","大庆","伊春","双鸭山","鹤岗","鸡西","佳木斯","七台河","黑河","绥化","大兴安岭"}}; private Spinner sp; private Spinner sp2; private Context context; ArrayAdapter<String> adapter ; ArrayAdapter<String> adapter2; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.cityset); context = this; adapter = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item, province); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); sp = (Spinner) findViewById(R.id.province); sp.setAdapter(adapter); sp.setOnItemSelectedListener(selectListener); adapter2 = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item, city); adapter2.setDropDownViewResource (android.R.layout.simple_spinner_dropdown_item); sp2 = (Spinner) findViewById(R.id.city); sp2.setAdapter(adapter2); } private OnItemSelectedListener selectListener = new OnItemSelectedListener(){ public void onItemSelected(AdapterView parent, View v, int position,long id){ int pos = sp.getSelectedItemPosition(); adapter2 = new ArrayAdapter<String> (context,android.R.layout.simple_spinner_item, pandc[pos]); sp2.setAdapter(adapter2); } public void onNothingSelected(AdapterView arg0){ } };}