這篇文章將為大家詳細(xì)講解有關(guān)怎么在Android中使用PickerView實(shí)現(xiàn)一個三級聯(lián)動效果，文章內(nèi)容質(zhì)量較高，因此小編分享給大家做個參考，希望大家閱讀完這篇文章后對相關(guān)知識有一定的了解。
龍港網(wǎng)站建設(shè)公司創(chuàng)新互聯(lián)公司,龍港網(wǎng)站設(shè)計(jì)制作，有大型網(wǎng)站制作公司豐富經(jīng)驗(yàn)。已為龍港1000多家提供企業(yè)網(wǎng)站建設(shè)服務(wù)。企業(yè)網(wǎng)站搭建\外貿(mào)網(wǎng)站建設(shè)要多少錢，請找那個售后服務(wù)好的龍港做網(wǎng)站的公司定做！
Android是一種基于Linux內(nèi)核的自由及開放源代碼的操作系統(tǒng)，主要使用于移動設(shè)備，如智能手機(jī)和平板電腦，由美國Google公司和開放手機(jī)聯(lián)盟領(lǐng)導(dǎo)及開發(fā)。
(1)在app目錄下新建一個assets文件夾，將province_data.xml文件復(fù)制到該文件夾下，該XML文件里保存了全國的省市縣的地址數(shù)據(jù)。
(2)使用SAX解析xml文件中的數(shù)據(jù)，并將數(shù)據(jù)填充到PickerView這個控件中。
—ProvinceModel—
重慶分公司
重慶分公司
public class ProvinceModel implements IPickerViewData
{
private String name;
private List cityList;
public ProvinceModel()
{
super();
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public List getCityList()
{
return cityList;
}
public void setCityList(List cityList)
{
this.cityList = cityList;
}
@Override
public String getPickerViewText()
{
return name;
}
} —CityModel—
public class CityModel implements IPickerViewData
{
private String name;
private List districtList;
public CityModel()
{
super();
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public List getDistrictList()
{
return districtList;
}
public void setDistrictList(List districtList)
{
this.districtList = districtList;
}
@Override
public String toString()
{
return name;
}
@Override
public String getPickerViewText()
{
return name;
}
} —DistrictModel—
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;
}
}—XmlParserHandler—
public class XmlParserHandler extends DefaultHandler
{
/**
* 存儲所有的解析對象
*/
private List provinceList = new ArrayList<>();
private ProvinceModel provinceModel = new ProvinceModel();
private CityModel cityModel = new CityModel();
private DistrictModel districtModel = new DistrictModel();
public XmlParserHandler(){}
public List 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());
}
else if (qName.equals("city"))
{
cityModel = new CityModel();
cityModel.setName(attributes.getValue(0));
cityModel.setDistrictList(new ArrayList());
}
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 mProvinces = new ArrayList<>();
private ArrayList> mCities = new ArrayList<>();
private ArrayList>> 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(xiàng)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(shù)據(jù)
mProvinces = (ArrayList) handler.getDataList();
}
catch (Throwable e)
{
e.printStackTrace();
}
if (mProvinces != null)
{
for (ProvinceModel p : mProvinces)
{
List cities = p.getCityList();
//組裝城市數(shù)據(jù)
mCities.add((ArrayList) cities);
ArrayList> dts = new ArrayList<>();
for (CityModel c : cities)
{
List districts = c.getDistrictList();
dts.add((ArrayList) districts);
}
mDistricts.add(dts);
}
}
}
} 關(guān)于怎么在Android中使用PickerView實(shí)現(xiàn)一個三級聯(lián)動效果就分享到這里了，希望以上內(nèi)容可以對大家有一定的幫助，可以學(xué)到更多知識。如果覺得文章不錯，可以把它分享出去讓更多的人看到。
