android ExpandableListActivity的使用

package com.example.keKuoZhanLieBiao;



import android.app.ExpandableListActivity;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.*;



public class MyActivity extends ExpandableListActivity {



    String[] groups = {"常见问题", "功能帮助", "其他帮助"};

    String[][] children = {

            {"常见问题1", "常见问题2", "常见问题3"},

            {"功能问题1", "功能问题2", "功能问题3"},

            {"其他问题1", "其他问题2", "其他问题3"},

    };



    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);



        ExpandableListAdapter adapter = new BaseExpandableListAdapter() {



            @Override

            public int getGroupCount() {

                return groups.length;

            }



            @Override

            public int getChildrenCount(int i) {

                return children[i].length;

            }



            @Override

            public Object getGroup(int i) {

                return groups[i];

            }



            @Override

            public Object getChild(int i, int i2) {

                return children[i][i2];

            }



            @Override

            public long getGroupId(int i) {

                return i;

            }



            @Override

            public long getChildId(int i, int i2) {

                return 0;

            }



            @Override

            public boolean hasStableIds() {

                return false;

            }





            @Override

            public View getGroupView(int i, boolean b, View view, ViewGroup viewGroup) {

                View view1 = LayoutInflater.from(MyActivity.this).inflate(R.layout.item_group, null);

                TextView title = (TextView) view1.findViewById(R.id.gp_tv);

                title.setText(groups[i]);

                return view1;

            }



            @Override

            public View getChildView(int i, int i2, boolean b, View view, ViewGroup viewGroup) {

                TextView textView = (TextView) LayoutInflater.from(MyActivity.this).inflate(R.layout.item_child, null);

                textView.setText(children[i][i2]);

                return textView;

            }



            @Override

            public boolean isChildSelectable(int i, int i2) {

                return true;

            }

        };





        setListAdapter(adapter);



//        绑定孩子点击事件

        this.getExpandableListView().setOnChildClickListener(new ExpandableListView.OnChildClickListener() {

            @Override

            public boolean onChildClick(ExpandableListView expandableListView, View view, int i, int i2, long l) {

                Toast.makeText(MyActivity.this, "你点击是"+children[i][i2], 1).show();

                return true;

            }

        });

    }

}