ExpandableListView结合CheckBox实现单选的完整示例

MainActivity如下:

import java.util.HashMap;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.AbsListView;
import android.widget.BaseExpandableListAdapter;
import android.widget.CheckBox;
import android.widget.ExpandableListAdapter;
import android.widget.ExpandableListView;
import android.widget.TextView;
import android.widget.ExpandableListView.OnChildClickListener;
import android.widget.ExpandableListView.OnGroupClickListener;
import android.widget.ExpandableListView.OnGroupCollapseListener;
import android.widget.ExpandableListView.OnGroupExpandListener;

public class ExpandableListViewTestActivity extends Activity {

	private ExpandableListView elistview = null; // 定义树型组件
	private ExpandableListAdapter adapter = null; // 定义适配器对象
	CheckBox childBox;
	TextView childTextView;
	private HashMap<String, Boolean> statusHashMap;
	View childItem = null;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		super.setContentView(R.layout.main); // 默认布局管理器
		this.elistview = (ExpandableListView) super.findViewById(R.id.elistview); // 取得组件
		this.adapter = new MyExpandableListAdapter(this); // 实例化适配器
		this.elistview.setAdapter(this.adapter); // 设置适配器
		this.elistview.setOnChildClickListener(new OnChildClickListenerImpl()); // 设置子项单击事件
		this.elistview.setOnGroupClickListener(new OnGroupClickListenerImpl());// 设置组项单击事件
		this.elistview.setOnGroupCollapseListener(new OnGroupCollapseListenerImpl());// 关闭分组事件
		this.elistview.setOnGroupExpandListener(new OnGroupExpandListenerImpl()); // 展开分组事件

	}

	private class OnChildClickListenerImpl implements OnChildClickListener {// 监听子项点击事件
		@Override
		public boolean onChildClick(ExpandableListView parent, View v,int groupPosition, int childPosition, long id) {			
			int gourpsSum = adapter.getGroupCount();//组的数量
			for(int i = 0; i < gourpsSum; i++) {
				int childSum = adapter.getChildrenCount(i);//组中子项的数量
				for(int k = 0; k < childSum;k++) {
					boolean isLast = false;
					if (k == (childSum - 1)){ 
						isLast = true;
					}
					
					CheckBox cBox = (CheckBox) adapter.getChildView(i, k, isLast, null, null).findViewById(R.id.checkBox);
					cBox.toggle();//切换CheckBox状态！！！！！！！！！！
					boolean itemIsCheck=cBox.isChecked();
					TextView tView=(TextView) adapter.getChildView(i, k, isLast, null, null).findViewById(R.id.textView);
					String gameName=tView.getText().toString();
					if (i == groupPosition && k == childPosition) {
						statusHashMap.put(gameName, itemIsCheck);
					} else {
						 statusHashMap.put(gameName, false);
					}
					((BaseExpandableListAdapter) adapter).notifyDataSetChanged();//通知数据发生了变化
				}
				
			}				
			return true;
		}
	}

	private class OnGroupClickListenerImpl implements OnGroupClickListener {// 组被点击事件
		@Override
		public boolean onGroupClick(ExpandableListView parent, View v,int groupPosition, long id) {
			return false;
		}
	}

	private class OnGroupCollapseListenerImpl implements OnGroupCollapseListener {// 组收缩事件
		@Override
		public void onGroupCollapse(int groupPosition) {
		}
	}

	private class OnGroupExpandListenerImpl implements OnGroupExpandListener {// 打开组事件
		@Override
		public void onGroupExpand(int groupPosition) {
		}
	}

	@Override
	public void onCreateContextMenu(ContextMenu menu, View view,ContextMenuInfo menuInfo) {// 处理长按事件
	}

	// 自定义适配器！！！！
	private class MyExpandableListAdapter extends BaseExpandableListAdapter {
		private Context context = null;
		public String[] groups = { "扑克", "麻将" }; // 组名称
		public String[][] children = { { "斗地主", "炸金花", "推火车" },{ "四川麻将", "北京麻将", "湖南麻将" } }; // 定义子选项

		public MyExpandableListAdapter(Context context) {
			this.context = context;
			statusHashMap = new HashMap<String, Boolean>();
			for (int i = 0; i < children.length; i++) {// 初始时,让所有的子选项均未被选中
				for (int a = 0; a < children[i].length; a++) {
					statusHashMap.put(children[i][a], false);
				}
			}
		}

		@Override
		public Object getChild(int groupPosition, int childPosition) { // 取得指定的子项
			return this.children[groupPosition][childPosition];
		}

		@Override
		public long getChildId(int groupPosition, int childPosition) { // 取得子项ID
			return childPosition;
		}

		public TextView buildTextView() { // 自定义方法，建立文本.用于显示组
			AbsListView.LayoutParams param = new AbsListView.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, 35); // 指定布局参数
			TextView textView = new TextView(this.context); // 创建TextView
			textView.setLayoutParams(param); // 设置布局参数
			textView.setTextSize(14.0f); // 设置文字大小
			textView.setGravity(Gravity.LEFT); // 左对齐
			textView.setPadding(40, 8, 3, 3); // 间距
			return textView; // 返回组件
		}
		//点击事件发生后:先执行事件监听,然后调用此getChildView()
		@Override
		public View getChildView(int groupPosition, int childPosition,boolean isLastChild, View convertView, ViewGroup parent) {// 返回子项组件
			if (convertView == null) {// 第一次的时候convertView是空,所以要生成convertView
				LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
				convertView = inflater.inflate(R.layout.item, null);
			}
			
			childTextView = (TextView) convertView.findViewById(R.id.textView);
			childTextView.setText(getChild(groupPosition, childPosition).toString());
			childBox = (CheckBox) convertView.findViewById(R.id.checkBox);
			Boolean nowStatus = statusHashMap.get(children[groupPosition][childPosition]);//当前状态
			childBox.setChecked(nowStatus);
			return convertView;
		}

		@Override
		public int getChildrenCount(int groupPosition) { // 取得子项个数
			return this.children[groupPosition].length;
		}

		@Override
		public Object getGroup(int groupPosition) { // 取得组对象
			return this.groups[groupPosition];
		}

		@Override
		public int getGroupCount() { // 取得组个数
			return this.groups.length;
		}

		@Override
		public long getGroupId(int groupPosition) { // 取得组ID
			return groupPosition;
		}

		@Override
		public View getGroupView(int groupPosition, boolean isExpanded,View convertView, ViewGroup parent) {// 取得组显示组件
			TextView textView = buildTextView(); // 建立组件
			textView.setText(this.getGroup(groupPosition).toString()); // 设置文字
			return textView;
		}

		@Override
		public boolean hasStableIds() {
			return true;
		}

		@Override
		public void notifyDataSetChanged() {//通知数据发生变化
			super.notifyDataSetChanged();
		}

		@Override
		public boolean isChildSelectable(int groupPosition, int childPosition) {
			return true;
		}
	}

}

main.xml如下:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
	xmlns:android="http://schemas.android.com/apk/res/android"
	android:orientation="vertical" 
	android:layout_width="fill_parent"
	android:layout_height="fill_parent">
	<ExpandableListView 
		android:id="@+id/elistview"
		android:layout_width="fill_parent"
		android:layout_height="wrap_content"
		android:groupIndicator="@null"
		/>
</LinearLayout>

item.xml如下:

<?xml version="1.0" encoding="utf-8"?>
<!-- 注意： 将复选框设置为不可点击，不可在触摸时点击，不可获得焦点 -->
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >
    <TextView 
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="60dip"
    />
   <CheckBox
       android:id="@+id/checkBox"
       android:layout_width="fill_parent"
       android:layout_height="wrap_content"
       android:clickable="false"
       android:focusable="false"
       android:focusableInTouchMode="false"
       android:layout_marginLeft="100dip"
    />  
</LinearLayout>