public class ProvinceModel implements IPickerViewData{  private String name;  private List<CityModel> cityList;  public ProvinceModel()  {    super();  }  public String getName()  {    return name;  }  public void setName(String name)  {    this.name = name;  }  public List<CityModel> getCityList()  {    return cityList;  }  public void setCityList(List<CityModel> cityList)  {    this.cityList = cityList;  }  @Override  public String getPickerViewText()  {    return name;  }}

public class CityModel implements IPickerViewData{  private String name;  private List<DistrictModel> districtList;  public CityModel()  {    super();  }  public String getName()  {    return name;  }  public void setName(String name)  {    this.name = name;  }  public List<DistrictModel> getDistrictList()  {    return districtList;  }  public void setDistrictList(List<DistrictModel> districtList)  {    this.districtList = districtList;  }  @Override  public String toString()  {    return name;  }  @Override  public String getPickerViewText()  {    return name;  }}

public class DistrictModel implements IPickerViewData{  private String name;  private String zipcode;  public DistrictModel()  {    super();  }  public String getZipcode()  {    return zipcode;  }  public void setZipcode(String zipcode)  {    this.zipcode = zipcode;  }  public String getName()  {    return name;  }  public void setName(String name)  {    this.name = name;  }  @Override  public String toString()  {    return name;  }  @Override  public String getPickerViewText()  {    return name;  }}

public class XmlParserHandler extends DefaultHandler{  /**   *  存儲所有的解析對象   */  private List<ProvinceModel> provinceList = new ArrayList<>();  private ProvinceModel provinceModel = new ProvinceModel();  private CityModel cityModel = new CityModel();  private DistrictModel districtModel = new DistrictModel();  public XmlParserHandler(){}  public List<ProvinceModel> getDataList()  {    return provinceList;  }  @Override  public void startDocument() throws SAXException  {    super.startDocument();  }  @Override  public void endDocument() throws SAXException  {    super.endDocument();  }  @Override  public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException  {    if (qName.equals("province"))    {      provinceModel = new ProvinceModel();      provinceModel.setName(attributes.getValue(0));      provinceModel.setCityList(new ArrayList<CityModel>());    }    else if (qName.equals("city"))    {      cityModel = new CityModel();      cityModel.setName(attributes.getValue(0));      cityModel.setDistrictList(new ArrayList<DistrictModel>());    }    else if (qName.equals("district"))    {      districtModel = new DistrictModel();      districtModel.setName(attributes.getValue(0));      districtModel.setZipcode(attributes.getValue(1));    }  }  @Override  public void endElement(String uri, String localName, String qName) throws SAXException  {    if(qName.equals("district"))    {      cityModel.getDistrictList().add(districtModel);    }    else if(qName.equals("city"))    {      provinceModel.getCityList().add(cityModel);    }    else if(qName.equals("province"))    {      provinceList.add(provinceModel);    }  }  @Override  public void characters(char[] ch, int start, int length) throws SAXException  {    super.characters(ch, start, length);  }}

public class AddressAddActivity extends BaseActivity{  private OptionsPickerView mCityPickerView;  private ArrayList<ProvinceModel> mProvinces = new ArrayList<>();  private ArrayList<ArrayList<CityModel>> mCities = new ArrayList<>();  private ArrayList<ArrayList<ArrayList<DistrictModel>>> mDistricts = new ArrayList<>();  @Override  protected void onCreate(@Nullable Bundle savedInstanceState)  {    super.onCreate(savedInstanceState);    supportRequestWindowFeature(Window.FEATURE_NO_TITLE);    setContentView(R.layout.activity_address_add);    ViewUtils.inject(this);    init();  }  private void init()  {    initProvinceDatas();    try    {      //選項選擇器      mCityPickerView = new OptionsPickerView(this);      mCityPickerView.setPicker( mProvinces, mCities, mDistricts, true);      mCityPickerView.setTitle("選擇城市");      mCityPickerView.setCyclic(false, false , false);      mCityPickerView.setOnoptionsSelectListener(new OptionsPickerView.OnOptionsSelectListener() {        @Override        public void onOptionsSelect(int options1, int option2, int options3)        {          String address = mProvinces.get(options1).getName() + " "              + mCities.get(options1).get(option2) + " "              + mDistricts.get(options1).get(option2).get(options3);          mTxtAddress.setText(address);        }      });    }    catch (Exception e)    {      e.printStackTrace();    }  }  @OnClick(R.id.ll_city_picker)  public void showpickerView(View view)  {    mCityPickerView.show();  }  protected void initProvinceDatas()  {    AssetManager asset = getAssets();    try    {      InputStream input = asset.open("province_data.xml");      SAXParserFactory spf = SAXParserFactory.newInstance();      SAXParser parser = spf.newSAXParser();      XmlParserHandler handler = new XmlParserHandler();      parser.parse(input , handler);      input.close();      //獲取解析出來的數據      mProvinces = (ArrayList<ProvinceModel>) handler.getDataList();    }    catch (Throwable e)    {      e.printStackTrace();    }    if (mProvinces != null)    {      for (ProvinceModel p : mProvinces)      {        List<CityModel> cities = p.getCityList();        //組裝城市數據        mCities.add((ArrayList<CityModel>) cities);        ArrayList<ArrayList<DistrictModel>> dts = new ArrayList<>();        for (CityModel c : cities)        {          List<DistrictModel> districts = c.getDistrictList();          dts.add((ArrayList<DistrictModel>) districts);        }        mDistricts.add(dts);      }    }  }}