本文实例为大家分享了android wheel省市县三级联动效果，供大家参考，具体内容如下
在github上面有一个叫做 Android-wheel 的开源控件, 代码地址：https://github.com/maarek/android-wheel
源码下载地址：http://xiazai.jb51.net/201610/yuanma/AndroidCascadeMaster(jb51.net).rar
主界面布局
activity_main.xml
assets资源文件下--province_data.xml（一部分）
先看省份、城市、县乡的bean类
ProvinceModel
package com.mrwujay.cascade.model;
import java.util.List;
public class ProvinceModel {
private String name;
private List cityList;
public ProvinceModel() {
super();
}
public ProvinceModel(String name, List cityList) {
super();
this.name = name;
this.cityList = cityList;
}
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 toString() {
return "ProvinceModel [name=" + name + ", cityList=" + cityList + "]";
}
}
package com.mrwujay.cascade.model;
import java.util.List;
public class CityModel {
private String name;
private List districtList;
public CityModel() {
super();
}
public CityModel(String name, List districtList) {
super();
this.name = name;
this.districtList = districtList;
}
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 "CityModel [name=" + name + ", districtList=" + districtList
+ "]";
}
}
DistrictModel
package com.mrwujay.cascade.model;
public class DistrictModel {
private String name;
private String zipcode;
public DistrictModel() {
super();
}
public DistrictModel(String name, String zipcode) {
super();
this.name = name;
this.zipcode = zipcode;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getZipcode() {
return zipcode;
}
public void setZipcode(String zipcode) {
this.zipcode = zipcode;
}
@Override
public String toString() {
return "DistrictModel [name=" + name + ", zipcode=" + zipcode + "]";
}
}
看自定义的XmlParserHandler
package com.mrwujay.cascade.service;
import java.util.ArrayList;
import java.util.List;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import com.mrwujay.cascade.model.CityModel;
import com.mrwujay.cascade.model.DistrictModel;
import com.mrwujay.cascade.model.ProvinceModel;
public class XmlParserHandler extends DefaultHandler {
/**
* 存储所有的解析对象
*/
private List provinceList = new ArrayList();
public XmlParserHandler() {
}
/**
* 对外暴露的方法
*/
public List getDataList() {
return provinceList;
}
@Override
public void startDocument() throws SAXException {
// 当读到第一个开始标签的时候，会触发这个方法
}
ProvinceModel provinceModel = new ProvinceModel();
CityModel cityModel = new CityModel();
DistrictModel districtModel = new DistrictModel();
/**
*
*/
@Override
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
// 当遇到开始标记的时候，调用这个方法
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 {
// 遇到结束标记的时候，会调用这个方法
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 {
}
}
接下来看基类BaseActivity
package com.mrwujay.cascade.activity;
import java.io.InputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import android.app.Activity;
import android.content.res.AssetManager;
import com.mrwujay.cascade.model.CityModel;
import com.mrwujay.cascade.model.DistrictModel;
import com.mrwujay.cascade.model.ProvinceModel;
import com.mrwujay.cascade.service.XmlParserHandler;
public class BaseActivity extends Activity {
/**
* 所有省
*/
protected String[] mProvinceDatas;
/**
* key - 省 value - 市
*/
protected Map mCitisDatasMap = new HashMap();
/**
* key - 市 values - 区
*/
protected Map mDistrictDatasMap = new HashMap();
/**
* key - 区 values - 邮编
*/
protected Map mZipcodeDatasMap = new HashMap();
/**
* 当前省的名称
*/
protected String mCurrentProviceName;
/**
* 当前市的名称
*/
protected String mCurrentCityName;
/**
* 当前区的名称
*/
protected String mCurrentDistrictName = "";
/**
* 当前区的邮政编码
*/
protected String mCurrentZipCode = "";
/**
* 解析省市区的XML数据
*/
protected void initProvinceDatas() {
//省份集合列表
List provinceList = null;
//获取资源
AssetManager asset = getAssets();
try {
//获取输入流
InputStream input = asset.open("province_data.xml");
// 创建一个解析xml的工厂对象
SAXParserFactory spf = SAXParserFactory.newInstance();
// 解析xml
SAXParser parser = spf.newSAXParser();
//解析工具
XmlParserHandler handler = new XmlParserHandler();
//进行解析
parser.parse(input, handler);
input.close();
// 获取解析出来的数据
provinceList = handler.getDataList();
// */ 初始化默认选中的省、市、区
if (provinceList != null && !provinceList.isEmpty()) {
//获取第一个省份
mCurrentProviceName = provinceList.get(0).getName();
List cityList = provinceList.get(0).getCityList();
if (cityList != null && !cityList.isEmpty()) {
//获取第一个省份的第一个城市名
mCurrentCityName = cityList.get(0).getName();
List districtList = cityList.get(0)
.getDistrictList();
//获取第一个省份的第一个城市的第一个县名称
mCurrentDistrictName = districtList.get(0).getName();
mCurrentZipCode = districtList.get(0).getZipcode();
}
}
// */
mProvinceDatas = new String[provinceList.size()];
for (int i = 0; i cityList = provinceList.get(i).getCityList();
String[] cityNames = new String[cityList.size()];
for (int j = 0; j districtList = cityList.get(j)
.getDistrictList();
String[] distrinctNameArray = new String[districtList
.size()];
DistrictModel[] distrinctArray = new DistrictModel[districtList
.size()];
for (int k = 0; k
主界面MainActivity
package com.mrwujay.cascade.activity;
import com.mrwujay.cascade.R;
import com.mrwujay.cascade.R.id;
import com.mrwujay.cascade.R.layout;
import kankan.wheel.widget.OnWheelChangedListener;
import kankan.wheel.widget.WheelView;
import kankan.wheel.widget.adapters.ArrayWheelAdapter;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends BaseActivity implements OnClickListener, OnWheelChangedListener {
private WheelView mViewProvince;
private WheelView mViewCity;
private WheelView mViewDistrict;
private Button mBtnConfirm;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setUpViews();
setUpListener();
setUpData();
}
private void setUpViews() {
mViewProvince = (WheelView) findViewById(R.id.id_province);
mViewCity = (WheelView) findViewById(R.id.id_city);
mViewDistrict = (WheelView) findViewById(R.id.id_district);
mBtnCOnfirm= (Button) findViewById(R.id.btn_confirm);
}
private void setUpListener() {
// 添加change事件
mViewProvince.addChangingListener(this);
// 添加change事件
mViewCity.addChangingListener(this);
// 添加change事件
mViewDistrict.addChangingListener(this);
// 添加onclick事件
mBtnConfirm.setOnClickListener(this);
}
private void setUpData() {
initProvinceDatas();
mViewProvince.setViewAdapter(new ArrayWheelAdapter(MainActivity.this, mProvinceDatas));
// 设置可见条目数量
mViewProvince.setVisibleItems(7);
mViewCity.setVisibleItems(7);
mViewDistrict.setVisibleItems(7);
updateCities();
updateAreas();
}
/**
* 根据当前的省，更新市WheelView的信息
*/
private void updateCities() {
//获取当前的省份的itme索引值
int pCurrent = mViewProvince.getCurrentItem();
//湖区当前省份名字
mCurrentProviceName = mProvinceDatas[pCurrent];
//获取该省份下面的市数组集合
String[] cities = mCitisDatasMap.get(mCurrentProviceName);
if (cities == null) {
cities = new String[] { "" };
}
mViewCity.setViewAdapter(new ArrayWheelAdapter(this, cities));
mViewCity.setCurrentItem(0);
updateAreas();
}
/**
* 根据当前的市，更新区WheelView的信息
*/
private void updateAreas() {
int pCurrent = mViewCity.getCurrentItem();
mCurrentCityName = mCitisDatasMap.get(mCurrentProviceName)[pCurrent];
String[] areas = mDistrictDatasMap.get(mCurrentCityName);
if (areas == null) {
areas = new String[] { "" };
}
mViewDistrict.setViewAdapter(new ArrayWheelAdapter(this, areas));
mViewDistrict.setCurrentItem(0);
}
/**
* 实现接口方法的回调
*/
@Override
public void onChanged(WheelView wheel, int oldValue, int newValue) {
// TODO Auto-generated method stub
if (wheel == mViewProvince) {
updateCities();
} else if (wheel == mViewCity) {
updateAreas();
} else if (wheel == mViewDistrict) {
//获取县的名字
mCurrentDistrictName = mDistrictDatasMap.get(mCurrentCityName)[newValue];
//获取县的编码
mCurrentZipCode = mZipcodeDatasMap.get(mCurrentDistrictName);
}
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_confirm:
showSelectedResult();
break;
default:
break;
}
}
private void showSelectedResult() {
Toast.makeText(MainActivity.this, "当前选中:"+mCurrentProviceName+","+mCurrentCityName+","
+mCurrentDistrictName+","+mCurrentZipCode, Toast.LENGTH_SHORT).show();
}
}
还有2个drawable
wheel_bg.xml
<&＃63;xml version="1.0" encoding="utf-8"&＃63;>
wheel_val.xml
<&＃63;xml version="1.0" encoding="utf-8"&＃63;>
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
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