android spinner 省市级联

项目源码地址：https://fengsourcecode.googlecode.com/svn/trunk/ProvinceAndCity

 

1.首先是bean 省的

/**
 * @(#) Province.java Created on 2012-6-13
 *
 * Copyright (c) 2012 Aspire. All Rights Reserved
 */
package com.android.test.provinceandcity.bean;

import java.util.List;

/**
 * The class <code>Province</code>
 * 
 * @author ouyangfeng
 * @version 1.0
 */
public class Province {

    /**
     * province name
     */
    private String name;

    /**
     * province code
     */
    private int code;

    /**
     * province have cities
     */
    private List<City> cities;

    public Province(String name, int code) {
        super();
        this.name = name;
        this.code = code;
    }

    public Province(String name, int code, List<City> cities) {
        super();
        this.name = name;
        this.code = code;
        this.cities = cities;
    }

    /**
     * Getter of name
     * 
     * @return the name
     */
    public String getName() {
        return name;
    }

    /**
     * Setter of name
     * 
     * @param name
     *            the name to set
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * Getter of code
     * 
     * @return the code
     */
    public int getCode() {
        return code;
    }

    /**
     * Setter of code
     * 
     * @param code
     *            the code to set
     */
    public void setCode(int code) {
        this.code = code;
    }

    /**
     * Getter of cities
     * 
     * @return the cities
     */
    public List<City> getCities() {
        return cities;
    }

    /**
     * Setter of cities
     * 
     * @param cities
     *            the cities to set
     */
    public void setCities(List<City> cities) {
        this.cities = cities;
    }

    /**
     * (non-Javadoc)
     * 
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return name;
    }
}

  然后是市的

/**
 * @(#) City.java Created on 2012-6-13
 *
 * Copyright (c) 2012 Aspire. All Rights Reserved
 */
package com.android.test.provinceandcity.bean;

/**
 * The class <code>City</code>
 * 
 * @author ouyangfeng
 * @version 1.0
 */
public class City {

    /**
     * city name
     */
    private String name;

    /**
     * province code;
     */
    private int province_code;

    /**
     * city code
     */
    private int code;

    /**
     * city unique code
     */
    private int unique_code;

    public City(String name, int province_code, int code, int unique_code) {
        super();
        this.name = name;
        this.province_code = province_code;
        this.code = code;
        this.unique_code = unique_code;
    }

    /**
     * Getter of name
     * 
     * @return the name
     */
    public String getName() {
        return name;
    }

    /**
     * Setter of name
     * 
     * @param name
     *            the name to set
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * Getter of province_code
     * 
     * @return the province_code
     */
    public int getProvince_code() {
        return province_code;
    }

    /**
     * Setter of province_code
     * 
     * @param province_code
     *            the province_code to set
     */
    public void setProvince_code(int province_code) {
        this.province_code = province_code;
    }

    /**
     * Getter of code
     * 
     * @return the code
     */
    public int getCode() {
        return code;
    }

    /**
     * Setter of code
     * 
     * @param code
     *            the code to set
     */
    public void setCode(int code) {
        this.code = code;
    }

    /**
     * Getter of unique_code
     * 
     * @return the unique_code
     */
    public int getUnique_code() {
        return unique_code;
    }

    /**
     * Setter of unique_code
     * 
     * @param unique_code
     *            the unique_code to set
     */
    public void setUnique_code(int unique_code) {
        this.unique_code = unique_code;
    }

    /**
     * (non-Javadoc)
     * 
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return name;
    }
}

 

然后是关于数据解析的

 

/**
 * @(#) ProvinceParse.java Created on 2012-6-13
 *
 * Copyright (c) 2012 Aspire. All Rights Reserved
 */
package com.android.test.provinceandcity.parse;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

import android.content.Context;

import com.android.test.provinceandcity.bean.City;
import com.android.test.provinceandcity.bean.Province;

/**
 * The class <code>ProvinceParse</code>
 * 
 * @author ouyangfeng
 * @version 1.0
 */
public class ProvinceParse {

    private static final String SPLIT_REGEX = ",";

    private Context mContext;

    private int province_id;

    private int cities_id;

    private List<Province> provinces;

    private ProvinceParse() {
    }

    public static ProvinceParse build(Context mContext, int province_id, int cities_id) {
        final ProvinceParse parse = new ProvinceParse();
        parse.mContext = mContext;
        parse.province_id = province_id;
        parse.cities_id = cities_id;
        parse.parse();
        return parse;
    }

    /**
     * parse from file
     */
    private void parse() {
        try {
            parseProvince();
            final List<City> cities = parseCity();
            List<City> tempCities = null;
            for (Province province : provinces) {
                tempCities = new ArrayList<City>();
                for (City city : cities) {
                    if (city.getProvince_code() == province.getCode()) {
                        tempCities.add(city);
                    }
                }
                province.setCities(tempCities);
            }
            System.out.println();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private void parseProvince() throws IOException {
        final List<String> strings = readLine(mContext, province_id);
        provinces = new ArrayList<Province>();
        Province province = null;
        String[] splitstr = null;
        for (String str : strings) {
            splitstr = splitLine(str, SPLIT_REGEX);
            if (splitstr.length == 2) {
                province = new Province(splitstr[0], Integer.parseInt(splitstr[1]));
                provinces.add(province);
            }

        }
    }

    private List<City> parseCity() throws IOException {
        final List<String> strings = readLine(mContext, cities_id);
        final List<City> cities = new ArrayList<City>();
        City city = null;
        String[] splitstr = null;
        for (String str : strings) {
            splitstr = splitLine(str, SPLIT_REGEX);
            if (splitstr.length == 4) {
                city = new City(splitstr[1], Integer.parseInt(splitstr[0]), Integer.parseInt(splitstr[2]),
                        Integer.parseInt(splitstr[3]));
                cities.add(city);
            }
        }
        return cities;
    }

    /**
     * Getter of provinces
     * 
     * @return the provinces
     */
    public List<Province> getProvinces() {
        return provinces;
    }

    private static String[] splitLine(String str, String regex) {
        return str.split(regex);
    }

    /**
     * read file by read line
     * 
     * @param mContext
     * @param id
     * @return
     * @throws IOException
     */
    private static List<String> readLine(Context mContext, int id) throws IOException {
        final InputStream in = mContext.getResources().openRawResource(id);
        final BufferedReader reader = new BufferedReader(new InputStreamReader(in, "GBK"));
        final List<String> strings = new ArrayList<String>();
        String line = null;
        while (null != (line = reader.readLine())) {
            strings.add(line);
        }
        reader.close();
        return strings;
    }

}

 

 

最后activity的

package com.android.test.provinceandcity;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Spinner;
import android.widget.Toast;

import com.android.test.provinceandcity.bean.City;
import com.android.test.provinceandcity.bean.Province;
import com.android.test.provinceandcity.parse.ProvinceParse;

public class ProvinceActivity extends Activity implements OnClickListener {

    private ProvinceParse parse;

    private Spinner spinner1, spinner2;

    private Province currentProvince;

    private City currentCity;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        init();
    }

    /**
     * 
     */
    private void init() {
        parse = ProvinceParse.build(this, R.raw.province, R.raw.cities);
        spinner1 = (Spinner) findViewById(R.id.spinner1);
        spinner2 = (Spinner) findViewById(R.id.spinner2);
        findViewById(R.id.button1).setOnClickListener(this);

        ArrayAdapter<Province> provinceAdapter = new ArrayAdapter<Province>(this, R.layout.simple_spinner_item,
                android.R.id.text1, parse.getProvinces());
        spinner1.setAdapter(provinceAdapter);

        spinner1.setOnItemSelectedListener(new ProvinceAdapter());
        spinner2.setOnItemSelectedListener(new CityAdapter());
    }

    public void onProvinChange(int position) {
        currentProvince = parse.getProvinces().get(position);
        ArrayAdapter<City> cityAdapter = new ArrayAdapter<City>(this, R.layout.simple_spinner_item, android.R.id.text1,
                currentProvince.getCities());
        spinner2.setAdapter(cityAdapter);
    }

    class ProvinceAdapter implements OnItemSelectedListener {

        /**
         * (non-Javadoc)
         * 
         * @see android.widget.AdapterView.OnItemSelectedListener#onItemSelected(android.widget.AdapterView,
         *      android.view.View, int, long)
         */
        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            onProvinChange(position);
        }

        /**
         * (non-Javadoc)
         * 
         * @see android.widget.AdapterView.OnItemSelectedListener#onNothingSelected(android.widget.AdapterView)
         */
        @Override
        public void onNothingSelected(AdapterView<?> parent) {

        }

    }

    final class CityAdapter extends ProvinceAdapter {

        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            currentCity = currentProvince.getCities().get(position);
        }
    }

    /**
     * (non-Javadoc)
     * 
     * @see android.view.View.OnClickListener#onClick(android.view.View)
     */
    @Override
    public void onClick(View v) {
        Toast.makeText(this, "" + currentProvince + currentCity, Toast.LENGTH_SHORT).show();
    }

}

 

 

两个xml布局文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <Spinner
        android:id="@+id/spinner1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />

    <Spinner
        android:id="@+id/spinner2"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />


    <Button
        android:id="@+id/button1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Button" />

</LinearLayout>

 

<?xml version="1.0" encoding="utf-8"?>
<!--
/* //device/apps/common/assets/res/any/layout/simple_spinner_item.xml
**
** Copyright 2006, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License"); 
** you may not use this file except in compliance with the License. 
** You may obtain a copy of the License at 
**
**     http://www.apache.org/licenses/LICENSE-2.0 
**
** Unless required by applicable law or agreed to in writing, software 
** distributed under the License is distributed on an "AS IS" BASIS, 
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
** See the License for the specific language governing permissions and 
** limitations under the License.
*/
-->
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/text1"
    style="?android:attr/spinnerItemStyle"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:ellipsize="marquee"
    android:singleLine="true"
    android:textSize="15pt" />