안드로이드 스튜디오에서 익스펜더블 리스트뷰를 만들어서 해당 Child리스트를 클릭시 관련 토스트를 띄우는거까지하는 코드입니다.

여기다 토스트를 띄우면서 동시에 각각의 child리스트에 다른 url을 입력하여, 해당된 웹뷰들을 띄우게하고싶은데, 어떻게 해야할까요?

MainActivity.java

package com.example.myexpandable;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.ExpandableListView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.HashMap;

public class MainActivity extends AppCompatActivity {

    ExpandableListView listMain;

    private ArrayList<String> arrayGroup = new ArrayList<String>();
    private HashMap<String,ArrayList<String>> arrayChild = new HashMap<String, ArrayList<String>>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        listMain = (ExpandableListView) this.findViewById(R.id.expandableListView1);
        setArrayDate();
        listMain.setAdapter(new AdptMain(this, arrayGroup, arrayChild));


        listMain.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
            @Override
            public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {
                String menu = arrayChild.get( arrayGroup.get(groupPosition)).get(childPosition);
                Toast.makeText(getApplicationContext(), menu+"홈페이지로 이동합니다~", Toast.LENGTH_SHORT).show();
                return false;
            }
        });

    }

    private void setArrayDate() {
        arrayGroup.add("햄버거 매장");
        arrayGroup.add("피자 매장");
        arrayGroup.add("중국집");

        ArrayList<String> arrayHamberger = new ArrayList<String>();
        arrayHamberger.add("맥도날드");
        arrayHamberger.add("버거킹");
        arrayHamberger.add("롯데리아");

        ArrayList<String> arrayPizza = new ArrayList<String>();
        arrayPizza.add("피자헛");
        arrayPizza.add("피자스쿨");
        arrayPizza.add("미스터피자");
        arrayPizza.add("피자에땅");
        arrayPizza.add("피자알볼로");

        ArrayList<String> arrayChinese = new ArrayList<String>();
        arrayChinese.add("청마루");
        arrayChinese.add("차이차이");
        arrayChinese.add("홍콩반점");

        arrayChild.put(arrayGroup.get(0), arrayHamberger);
        arrayChild.put(arrayGroup.get(1), arrayPizza);
        arrayChild.put(arrayGroup.get(2), arrayChinese);
    }

}

AdptMain.java

package com.example.myexpandable;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.RelativeLayout;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.HashMap;

public class AdptMain extends BaseExpandableListAdapter {
    private Context context;
    private ArrayList<String> arrayGroup;
    private HashMap<String, ArrayList<String>> arrayChild;

    public AdptMain( Context context, ArrayList<String> arrayGroup, HashMap<String, ArrayList<String>> arrayChild){
        super();
        this.context = context;
        this.arrayChild= arrayChild;
        this.arrayGroup= arrayGroup;


    }



    @Override
    public int getGroupCount() {
        return arrayGroup.size();
    }

    @Override
    public int getChildrenCount(int groupPosition) {
        return arrayChild.get( arrayGroup.get( groupPosition )).size();
    }

    @Override
    public Object getGroup(int groupPosition) {
        return arrayGroup.get(groupPosition);
    }

    @Override
    public Object getChild(int groupPosition, int childPosition) {
        return arrayChild.get( arrayGroup.get( groupPosition)).get(childPosition);
    }

    @Override
    public long getGroupId(int groupPosition) {
        return groupPosition;
    }

    @Override
    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }

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

    @Override
    public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
        String groupName = arrayGroup.get(groupPosition);
        View v  = convertView;

        if( v == null){
            LayoutInflater inflater=  (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            v = (RelativeLayout)inflater.inflate(R.layout.listviewitem_group, null);
        }
        TextView textGroup = (TextView) v.findViewById(R.id.textGroup);
        textGroup.setText(groupName);

        return v;
    }

    @Override
    public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
        String childName = arrayChild.get(arrayGroup.get(groupPosition)).get(childPosition);
        View v  = convertView;


        if( v == null){
            LayoutInflater inflater=  (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            v = (RelativeLayout)inflater.inflate(R.layout.listviewitem_child, null);
        }
        TextView textChild = (TextView) v.findViewById(R.id.textChild);
        textChild.setText(childName);

        return v;
    }

    @Override
    public boolean isChildSelectable(int i, int i1) {
        return true;
    }


}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
    xmlns:andriod="http://schemas.android.com/apk/res-auto"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.myexpandable.MainActivity">

    <ExpandableListView
        android:id="@+id/expandableListView1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        />
</RelativeLayout>

listviewitem_group.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
        android:id="@+id/textChild"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_centerVertical="true"
        android:layout_marginLeft="20dp"
        android:padding="10dp"
        android:text="Child"/>

</RelativeLayout>

listviewitem_child.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
        android:id="@+id/textGroup"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_centerVertical="true"
        android:layout_marginLeft="20dp"
        android:padding="20dp"
        android:text="Group" />

</RelativeLayout>