android添加地址中的省市县乡村镇的递进选择和回调

public class UserAddressCityActivity extends BaseActivity {   private List<AddressCityEvent> addressCityEvents;   private ListView lvUserAddressCity;   private UserAddressCityAdapter addressCityAdapter;   private String areaCode;   private String areaName;   private String urlStr;   private void inte() {      areaCode = getIntent().getStringExtra("id");      areaName = getIntent().getStringExtra("name");      if (areaCode == null) {         //urlStr = " http://www.jiangn.com/admin/Area/GetChildAreas";         urlStr = OkHttpClientUtil.mGETAreaAddress;         System.out.print(areaCode);      }else  {         urlStr = OkHttpClientUtil.mGETAreaAddress+"?id=" + areaCode;         System.out.print(areaCode);      }           lvUserAddressCity = (ListView) findViewById(R.id.lv_user_address_city);   }   @Override   protected void onCreate(Bundle savedInstanceState) {      super.onCreate(savedInstanceState);      setContentView(R.layout.activity_user_address_city_first);      inte();      lvUserAddressCity.setOnItemClickListener(new OnItemClickListener() {         @Override         public void onItemClick(AdapterView<?> parent, View view,               int position, long id) {            Intent intent = new Intent(mContext, UserAddressCityActivity.class);            intent.putExtra("id", addressCityEvents.get(position).getId());            if(areaName != null){               //intent.putExtra("name", areaCode+areaName + (addressCityEvents.get(position).getName()));               intent.putExtra("name",  areaName + (addressCityEvents.get(position).getName()));            }else {               intent.putExtra("name", addressCityEvents.get(position).getName());            }            startActivityForResult(intent, 1);         }  });      Request.Builder requestBuilder = OkHttpClientUtil.RequestAssembly(urlStr);      Request request = requestBuilder.build();      OkHttpClientManager.getAsyn(request, new OkHttpClientManager.ResultCallback<String>() {               @Override               public void onError(Request request, Exception e) {                  Toast.makeText(mContext, "获取列表失败", Toast.LENGTH_SHORT).show();                  finish();  }               @Override               public void onResponse(String jsonStr) {                  AddressCityEvents addressCityListEvent = new AddressCityEvents(                        jsonStr);                  addressCityEvents = addressCityListEvent.getAddressCityEvents();                  if (addressCityEvents != null) {                     if (addressCityEvents.size() <= 0) {                        Intent intent = new Intent();                        intent.putExtra("areaCode", areaCode);                        intent.putExtra("areaName", areaName);                                                                       setResult(1, intent);                        finish();                     }  }                  addressCityAdapter = new UserAddressCityAdapter(mContext, R.layout.item_lv_simple_type, addressCityEvents);                  lvUserAddressCity.setAdapter(addressCityAdapter);               } }); }      @Override   protected void onActivityResult(int requestCode, int resultCode, Intent data) {      super.onActivityResult(requestCode, resultCode, data);      switch (requestCode) {      case 1:         if(resultCode == 1){            Intent intent = new Intent(UserAddressCityActivity.this,UserAddAddressActivity.class);            areaCode = data.getStringExtra("areaCode");            areaName = data.getStringExtra("areaName");            intent.putExtra("areaCode", areaCode);            intent.putExtra("areaName", areaName);            //startActivity(intent);//9.7            System.out.print(areaCode);            setResult(1, intent);            finish(); }         break;      default:         break;     } }  }

其中

/** 请求头部组装 url字符串*/public static Request.Builder RequestAssembly(String urlStr) {   Request.Builder builder = new Request.Builder()         .url(urlStr)         .addHeader("smartstore-net-api-date", TimeUtil.GetTimeNow());   return builder;}