ExpandableListView結合CheckBox實現單選的完整示例

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; // 定義樹型組件  
    private ExpandableListAdapter adapter = null; // 定義適配器對象  
    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); // 默認布局管理器  
        this.elistview = (ExpandableListView) super.findViewById(R.id.elistview); // 取得組件  
        this.adapter = new MyExpandableListAdapter(this); // 實例化適配器  
        this.elistview.setAdapter(this.adapter); // 設置適配器  
        this.elistview.setOnChildClickListener(new OnChildClickListenerImpl()); // 設置子項單擊事件  
        this.elistview.setOnGroupClickListener(new OnGroupClickListenerImpl());// 設置組項單擊事件  
        this.elistview.setOnGroupCollapseListener(new OnGroupCollapseListenerImpl());// 關閉分組事件  
        this.elistview.setOnGroupExpandListener(new OnGroupExpandListenerImpl()); // 展開分組事件  

    }  

    private class OnChildClickListenerImpl implements OnChildClickListener {// 監聽子項點擊事件  
        @Override  
        public boolean onChildClick(ExpandableListView parent, View v,int groupPosition, int childPosition, long id) {            
            int gourpsSum = adapter.getGroupCount();//組的數量  
            for(int i = 0; i < gourpsSum; i++) {  
                int childSum = adapter.getChildrenCount(i);//組中子項的數量  
                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();//切換CheckBox狀態！！！！！！！！！！  
                    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();//通知數據發生了變化  
                }  

            }                 
            return true;  
        }  
    }  

    private class OnGroupClickListenerImpl implements OnGroupClickListener {// 組被點擊事件  
        @Override  
        public boolean onGroupClick(ExpandableListView parent, View v,int groupPosition, long id) {  
            return false;  
        }  
    }  

    private class OnGroupCollapseListenerImpl implements OnGroupCollapseListener {// 組收縮事件  
        @Override  
        public void onGroupCollapse(int groupPosition) {  
        }  
    }  

    private class OnGroupExpandListenerImpl implements OnGroupExpandListener {// 打開組事件  
        @Override  
        public void onGroupExpand(int groupPosition) {  
        }  
    }  

    @Override  
    public void onCreateContextMenu(ContextMenu menu, View view,ContextMenuInfo menuInfo) {// 處理長按事件  
    }  

    // 自定義適配器！！！！  
    private class MyExpandableListAdapter extends BaseExpandableListAdapter {  
        private Context context = null;  
        public String[] groups = { "撲克", "麻將" }; // 組名稱  
        public String[][] children = { { "斗地主", "炸金花", "推火車" },{ "四川麻將", "北京麻將", "湖南麻將" } }; // 定義子選項  

        public MyExpandableListAdapter(Context context) {  
            this.context = context;  
            statusHashMap = new HashMap<String, Boolean>();  
            for (int i = 0; i < children.length; i++) {// 初始時,讓所有的子選項均未被選中  
                for (int a = 0; a < children[i].length; a++) {  
                    statusHashMap.put(children[i][a], false);  
                }  
            }  
        }  

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

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

        public TextView buildTextView() { // 自定義方法，建立文本.用于顯示組  
            AbsListView.LayoutParams param = new AbsListView.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, 35); // 指定布局參數  
            TextView textView = new TextView(this.context); // 創建TextView  
            textView.setLayoutParams(param); // 設置布局參數  
            textView.setTextSize(14.0f); // 設置文字大小  
            textView.setGravity(Gravity.LEFT); // 左對齊  
            textView.setPadding(40, 8, 3, 3); // 間距  
            return textView; // 返回組件  
        }  
        //點擊事件發生后:先執行事件監聽,然后調用此getChildView()  
        @Override  
        public View getChildView(int groupPosition, int childPosition,boolean isLastChild, View convertView, ViewGroup parent) {// 返回子項組件  
            if (convertView == null) {// 第一次的時候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]);//當前狀態  
            childBox.setChecked(nowStatus);  
            return convertView;  
        }  

        @Override  
        public int getChildrenCount(int groupPosition) { // 取得子項個數  
            return this.children[groupPosition].length;  
        }  

        @Override  
        public Object getGroup(int groupPosition) { // 取得組對象  
            return this.groups[groupPosition];  
        }  

        @Override  
        public int getGroupCount() { // 取得組個數  
            return this.groups.length;  
        }  

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

        @Override  
        public View getGroupView(int groupPosition, boolean isExpanded,View convertView, ViewGroup parent) {// 取得組顯示組件  
            TextView textView = buildTextView(); // 建立組件  
            textView.setText(this.getGroup(groupPosition).toString()); // 設置文字  
            return textView;  
        }  

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

        @Override  
        public void notifyDataSetChanged() {//通知數據發生變化  
            super.notifyDataSetChanged();  
        }  

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

}  </pre>main.xml如下:<pre class="brush:xml; toolbar: true; auto-links: false;">    <?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>  </pre>item.xml如下:<pre class="brush:xml; toolbar: true; auto-links: false;">    <?xml version="1.0" encoding="utf-8"?>  
<!-- 注意： 將復選框設置為不可點擊，不可在觸摸時點擊，不可獲得焦點 -->  
<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>  </pre>