Expandablelistview1Activity.java
package com.wangzhu.demoexpandablelistview;import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;import android.app.Activity;
import android.os.Bundle;
import android.widget.ExpandableListView;
import android.widget.SimpleExpandableListAdapter;public class Expandablelistview1Activity extends Activity {
private ExpandableListView expandableListView1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.expandablelistview1);init();
}private void init() {
expandableListView1 = (ExpandableListView) findViewById(R.id.expandableListView1);
getDatas();
}private void getDatas() {
// 创建两个一级条目标题
Map<String, String> title_1 = new HashMap<String, String>();
title_1.put("group", "移动开发");
Map<String, String> title_2 = new HashMap<String, String>();
title_2.put("group", "男人的需求");// 创建一级条目容器
List<Map<String, String>> groups = new ArrayList<Map<String, String>>();
groups.add(title_1);
groups.add(title_2);// 创建二级条目内容
// 内容一
Map<String, String> content_1 = new HashMap<String, String>();
content_1.put("child", "Android");
Map<String, String> content_2 = new HashMap<String, String>();
content_2.put("child", "Ios");List<Map<String, String>> childs_1 = new ArrayList<Map<String, String>>();
childs_1.add(content_1);
childs_1.add(content_2);// 内容二
Map<String, String> content_3 = new HashMap<String, String>();
content_3.put("child", "金钱");
Map<String, String> content_4 = new HashMap<String, String>();
content_4.put("child", "权利");
Map<String, String> content_5 = new HashMap<String, String>();
content_5.put("child", "女人");List<Map<String, String>> childs_2 = new ArrayList<Map<String, String>>();
childs_2.add(content_3);
childs_2.add(content_4);
childs_2.add(content_5);// 存放两个内容,以便显示在列表中
List<List<Map<String, String>>> childs = new ArrayList<List<Map<String, String>>>();
childs.add(childs_1);
childs.add(childs_2);/**
* 参数1:上下文对象context 参数2:一级条目目录集合 参数3:一级条目对应的布局文件
* 参数4:fromto,就是map中的key,指定要显示的对象 参数5:与参数4对应,指定要显示在groups中的id
* 参数6:二级条目目录集合 参数7:二级条目对应的布局文件 参数8:fromto,就是map中的key,指定要显示的对象
* 参数9:与参数8对应,指定要显示在childs中的id
*/
SimpleExpandableListAdapter adapter = new SimpleExpandableListAdapter(
this, groups, R.layout.expandablelistview1_groups,
new String[] { "group" }, new int[] { R.id.textGroup }, childs,
R.layout.expandablelistview1_child, new String[] { "child" },
new int[] { R.id.textChild });
expandableListView1.setAdapter(adapter);
}}
expandablelistview1.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" ><ExpandableListView
android:id="@+id/expandableListView1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</ExpandableListView></LinearLayout>
expandablelistview1_groups.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" ><TextView
android:id="@+id/textGroup"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="6dp"
android:paddingLeft="40dp"
android:paddingTop="6dp"
android:text="No data"
android:textSize="15sp" /></LinearLayout>
expandablelistview1_child.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" ><TextView
android:id="@+id/textChild"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="10dp"
android:paddingLeft="40dp"
android:paddingTop="10dp"
android:text="No data"
android:textSize="20sp" /></LinearLayout>
备注:
简单的应用,网上导出都可见,理论就不写了,直接源码吧!
Android ExpandableListView的简单应用,码迷,mamicode.com