Java代码：
[java] view plain copy package com.example.spinnerdemo; import android.os.Bundle; import android.app.Activity; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Spinner; public class MainActivity extends Activity { private Spinner provinceSpinner = null; // 省（省、直辖市） private Spinner citySpinner = null; // 市 private Spinner countrySpinner = null; // 区 private ArrayAdapter<String> provinceAdapter = null; // 省 private ArrayAdapter<String> cityAdapter = null; // 市 private ArrayAdapter<String> countryAdapter = null; // 区 private int provincePosition = 3; // 省级选项值 private String[] province = new String[] { "北京", "上海", "天津", "广东" };// ,"重庆","黑龙江","江苏","山东","浙江","香港","澳门"}; // 市级选项值 private String[][] city = new String[][] { { "东城区", "西城区", "崇文区", "宣武区", "朝阳区", "海淀区", "丰台区", "石景山区", "门头沟区","房山区", "通州区", "顺义区", "大兴区", "昌平区", "平谷区", "怀柔区", "密云县","延庆县" }, { "长宁区", "静安区", "普陀区", "闸北区", "虹口区" }, { "和平区", "河东区", "河西区", "南开区", "河北区", "红桥区", "塘沽区", "汉沽区", "大港区","东丽区" }, { "广州", "深圳", "韶关" // ,"珠海","汕头","佛山","湛江","肇庆","江门","茂名","惠州","梅州", // "汕尾","河源","阳江","清远","东莞","中山","潮州","揭阳","云浮" } }; // 区县级选项值 private String[][][] country = new String[][][] { { //北京 {"无"},{"无"},{"无"},{"无"},{"无"},{"无"},{"无"},{"无"},{"无"},{"无"}, {"无"},{"无"},{"无"},{"无"},{"无"},{"无"},{"无"},{"无"} }, { //上海 {"无"},{"无"},{"无"},{"无"},{"无"} }, { //天津 {"无"},{"无"},{"无"},{"无"},{"无"},{"无"},{"无"},{"无"},{"无"},{"无"} }, { //广东 {"海珠区","荔湾区","越秀区","白云区","萝岗区","天河区","黄埔区","花都区","从化市","增城市","番禺区","南沙区"}, //广州 {"宝安区","福田区","龙岗区","罗湖区","南山区","盐田区"}, //深圳 {"武江区","浈江区","曲江区","乐昌市","南雄市","始兴县","仁化县","翁源县","新丰县","乳源县"} //韶关 } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); provinceSpinner = (Spinner) findViewById(R.id.spinner_province); citySpinner = (Spinner) findViewById(R.id.spinner_city); countrySpinner = (Spinner) findViewById(R.id.spinner_country); // 装载适配器和值 provinceAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, province); provinceSpinner.setAdapter(provinceAdapter); cityAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, city[3]); citySpinner.setAdapter(cityAdapter); countryAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, country[3][0]); countrySpinner.setAdapter(countryAdapter); // 省下拉框监听 provinceSpinner .setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> arg0, View arg1, int position, long arg3) { cityAdapter = new ArrayAdapter<String>( getApplication(), android.R.layout.simple_spinner_item, city[position]); citySpinner.setAdapter(cityAdapter); provincePosition = position; // 记录当前省级序号，留给下面修改县级适配器时用 } @Override public void onNothingSelected(AdapterView<?> arg0) { } }); // 市级下拉监听 citySpinner .setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> arg0, View arg1, int position, long arg3) { countryAdapter = new ArrayAdapter<String>( getApplication(), android.R.layout.simple_spinner_item, country[provincePosition][position]); countrySpinner.setAdapter(countryAdapter); } @Override public void onNothingSelected(AdapterView<?> arg0) { } }); } }
布局文件：
[html] view plain copy <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#e0e0e0" android:orientation="horizontal" > <Spinner android:id="@+id/spinner_province" android:layout_width="0dip" android:layout_weight="1" android:layout_height="wrap_content" /> <Spinner android:id="@+id/spinner_city" android:layout_width="0dip" android:layout_weight="1" android:layout_height="wrap_content" /> <Spinner android:id="@+id/spinner_country" android:layout_width="0dip" android:layout_weight="1" android:layout_height="wrap_content" /> </LinearLayout>
