Spinner的三级联动

(采用ArrayAdapter)
使用entries设置显示数组数据
android:dropDownWidth：设置下拉列表的宽度
android:dropDownSelector：设置Spinner组件的下拉框被选择的动态效果属性
android:popupBackground:下拉框的背景
使用ArrayAdapter为其设置相应数据、Spinner样式及下拉窗口样式等内容
android.R.layout.simple_spinner_item:设置spinner的样式
adapter.setDropDownViewResouce(android.R.simple_spinner_dropdown_item)：设置下拉框的样式
添加setOnItemSelectedListener(OnItemSelectedListener)事件监听器

package com.xspacing.spinners;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.AdapterView.OnItemSelectedListener;import android.widget.ArrayAdapter;import android.widget.Spinner;/** *  * @ClassName MainActivity.java * @Description 级联Spinner * @author Smile * @version v1.0 * @date 2016年9月23日  */public class MainActivity extends Activity {    private Spinner provinceSpinner;    private Spinner citySpinner;    private Spinner areaSpinner;    private String province[] = { "山西", "江苏", "河南" };    private String city[][] = { { "太原", "大同" }, { "南京", "苏州" }, { "平顶山", "郑州" } };    private String Area[][][] = { { { "迎泽区", "小店区" }, { "市区", "矿区" } }, { { "玄武区", "中山区" }, { "姑苏区", "相城区" } },            { { "新华区", "山区区" }, { "开发区", "高新区" } } };    private ArrayAdapter provinceAdapter;    private ArrayAdapter areaAdapter;    private ArrayAdapter cityAdapter;    private int provicePosition;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initViews();    }    private void initViews() {        provinceSpinner = (Spinner) findViewById(R.id.province_sp);        citySpinner = (Spinner) findViewById(R.id.city_sp);        areaSpinner = (Spinner) findViewById(R.id.area_sp);        provinceAdapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, province);        cityAdapter = setCityAdapter(0);        areaAdapter = setAreaAdapter(0, 0);        provinceSpinner.setAdapter(provinceAdapter);        citySpinner.setAdapter(cityAdapter);        areaSpinner.setAdapter(areaAdapter);        provinceSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {            @Override            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {                citySpinner.setAdapter(setCityAdapter(position));                provicePosition = position;            }            @Override            public void onNothingSelected(AdapterView<?> parent) {            }        });        citySpinner.setOnItemSelectedListener(new OnItemSelectedListener() {            @Override            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {                areaSpinner.setAdapter(setAreaAdapter(provicePosition, position));            }            @Override            public void onNothingSelected(AdapterView<?> parent) {            }        });    }    public ArrayAdapter setCityAdapter(int position) {        return new ArrayAdapter(this, android.R.layout.simple_list_item_1, city[position]);    }    public ArrayAdapter setAreaAdapter(int position, int pre) {        return new ArrayAdapter(this, android.R.layout.simple_list_item_1, Area[position][pre]);    }}

<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:orientation="vertical"    tools:context="com.xspacing.spinners.MainActivity" >    <Spinner        android:id="@+id/province_sp"        android:layout_width="match_parent"        android:layout_height="wrap_content" />     <Spinner        android:id="@+id/city_sp"        android:layout_width="match_parent"        android:layout_height="wrap_content" />      <Spinner        android:id="@+id/area_sp"        android:layout_width="match_parent"        android:layout_height="wrap_content" />LinearLayout>

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