Как использовать расширяемый список в следующем сценарии

Вы можете найти хорошие учебные пособия для расширяемого списка по следующей ссылке.

http://www.androidhive.info/2013/07/android-expandable-list-view-tutorial/

Вы можете удалить ненужный заголовок и дочерний элемент из списка строк (на основе администратора/пользователя), прежде чем передать его в качестве входных данных для адаптера представления расширяемого списка.

Вы должны установить адаптер:

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_admin);

    toolbar = (Toolbar) findViewById(R.id.appBar);
    toolbar.setTitle(" Admin Screen");
    toolbar.setTitleTextColor(Color.WHITE);

    login = (ExpandableListView) findViewById(R.id.expandableListViewLogin);
    android = (ExpandableListView) findViewById(R.id.expandableListViewAndroid);
    ios = (ExpandableListView) findViewById(R.id.expandableListViewIos);
    testing = (ExpandableListView) findViewById(R.id.expandableListViewTesting);
    java = (ExpandableListView) findViewById(R.id.expandableListViewJava);
    dotNet = (ExpandableListView) findViewById(R.id.expandableListViewDotNet);
    os = (ExpandableListView) findViewById(R.id.expandableListViewOS);
    hr = (ExpandableListView) findViewById(R.id.expandableListViewHR);
    others = (ExpandableListView) findViewById(R.id.expandableListViewOthers);
    titleText.add("User Id Authentication");
    titleText.add("Android Posts Authentication");
    titleText.add("iOS Posts Authentication");
    titleText.add("Testing Posts Authentication");
    titleText.add("Java Posts Authentication");
    titleText.add("Dot Net Posts Authentication");
    titleText.add("OS Posts Authentication");
    titleText.add("HR Posts Authentication");
    titleText.add("Others Posts Authentication");
    SQLiteDataBaseAdapter db = new SQLiteDataBaseAdapter(this);
    List<String> childData =  db.getAndroidList();
    //setting the list adapter
    listAdapter = new ExpandableListAdapter(this, titleText, childData);
    ExpandableListView listView = (ExpandableListView) findViewById(R.id.listView);
    listView.setAdapter(listAdapter);

}

**Its Working**

package com.keshav.myexpandablelistviewexampleworkinginactivity;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ExpandableListView;
import android.widget.ExpandableListView.OnChildClickListener;
import android.widget.ExpandableListView.OnGroupClickListener;
import android.widget.ExpandableListView.OnGroupCollapseListener;
import android.widget.ExpandableListView.OnGroupExpandListener;
import android.widget.Toast;

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

public class MainActivity extends Activity {

    ExpandableListAdapter listAdapter;
    ExpandableListView expListView;
    List<String> listDataHeader;
    HashMap<String, List<String>> listDataChild;

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

        // tODO get the listview
        expListView = (ExpandableListView) findViewById(R.id.lvExp);

        // TODO preparing list data
        prepareListData();

        listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);

        // setting list adapter
        expListView.setAdapter(listAdapter);

        // Listview Group click listener
        expListView.setOnGroupClickListener(new OnGroupClickListener() {

            @Override
            public boolean onGroupClick(ExpandableListView parent, View v,
                                        int groupPosition, long id) {
                Toast.makeText(getApplicationContext(),
                        "Group Clicked " + listDataHeader.get(groupPosition),
                        Toast.LENGTH_SHORT).show();
                return false;
            }

        });

        // Listview Group expanded listener
        expListView.setOnGroupExpandListener(new OnGroupExpandListener() {

            // TODO Colapse Here Using this... in android
            int previousGroup = -1;
            boolean flag = false;

            @Override
            public void onGroupExpand(int groupPosition) {

                Log.e("keshav", "onGroupClick is -> " + groupPosition);

                Toast.makeText(getApplicationContext(),
                        listDataHeader.get(groupPosition) + " Expanded",
                        Toast.LENGTH_SHORT).show();

                if (groupPosition != previousGroup && flag) {
                    expListView.collapseGroup(previousGroup);
                }
                previousGroup = groupPosition;

                flag = true;

            }
        });


        // Listview Group collasped listener
        expListView.setOnGroupCollapseListener(new OnGroupCollapseListener() {

            @Override
            public void onGroupCollapse(int groupPosition) {
                Toast.makeText(getApplicationContext(),
                        listDataHeader.get(groupPosition) + " Collapsed",
                        Toast.LENGTH_SHORT).show();

            }
        });


        // Todo Listview on child click listener
        expListView.setOnChildClickListener(new OnChildClickListener() {

            @Override
            public boolean onChildClick(ExpandableListView parent, View v,
                                        int groupPosition, int childPosition, long id) {
                // TODO Auto-generated method stub
                Toast.makeText(
                        getApplicationContext(),
                        listDataHeader.get(groupPosition)
                                + " : "
                                + listDataChild.get(
                                listDataHeader.get(groupPosition)).get(
                                childPosition), Toast.LENGTH_SHORT)
                        .show();
                return false;
            }
        });
    }

    /*
     * Preparing the list data
     */
    private void prepareListData() {
        listDataHeader = new ArrayList<String>();
        listDataChild = new HashMap<String, List<String>>();

        // Adding child data
        listDataHeader.add("Months");
        listDataHeader.add("Top 250");
        listDataHeader.add("Now Showing");
        listDataHeader.add("Coming Soon..");


        // Adding child data
        List<String> weeks = new ArrayList<String>();
        weeks.add("Sunday");
        weeks.add("Monday");
        weeks.add("Tuesday");
        weeks.add("Wednesday");
        weeks.add("Thursday");
        weeks.add("Friday");
        weeks.add("Saturday");


        // Adding child data
        List<String> top250 = new ArrayList<String>();
        top250.add("Om Shanti Om");
        top250.add("Badshah");
        top250.add("Bahubali Part 1");
        top250.add("Carry on Jatta");
        top250.add("Sholey");
        top250.add("Mard");
        top250.add("Dewwar");


        List<String> nowShowing = new ArrayList<String>();
        nowShowing.add("Bahubali");
        nowShowing.add("Kabali");
        nowShowing.add("Luckky Di Unlukky Story");
        nowShowing.add("Sachin Billions Dream");
        nowShowing.add("Red 2");

        List<String> comingSoon = new ArrayList<String>();
        comingSoon.add("Tubelight ");
        comingSoon.add("Bahubali 3 2018");
        comingSoon.add("Dhoom 4");
        comingSoon.add("Hindi Medium");

        listDataChild.put(listDataHeader.get(0), weeks);
        listDataChild.put(listDataHeader.get(1), top250); // Header, Child data
        listDataChild.put(listDataHeader.get(2), nowShowing);
        listDataChild.put(listDataHeader.get(3), comingSoon);
    }
}



package com.keshav.myexpandablelistviewexampleworkinginactivity;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ExpandableListView;
import android.widget.ExpandableListView.OnChildClickListener;
import android.widget.ExpandableListView.OnGroupClickListener;
import android.widget.ExpandableListView.OnGroupCollapseListener;
import android.widget.ExpandableListView.OnGroupExpandListener;
import android.widget.Toast;

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

public class MainActivity extends Activity {

    ExpandableListAdapter listAdapter;
    ExpandableListView expListView;
    List<String> listDataHeader;
    HashMap<String, List<String>> listDataChild;

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

        // tODO get the listview
        expListView = (ExpandableListView) findViewById(R.id.lvExp);

        // TODO preparing list data
        prepareListData();

        listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);

        // setting list adapter
        expListView.setAdapter(listAdapter);

        // Listview Group click listener
        expListView.setOnGroupClickListener(new OnGroupClickListener() {

            @Override
            public boolean onGroupClick(ExpandableListView parent, View v,
                                        int groupPosition, long id) {
                Toast.makeText(getApplicationContext(),
                        "Group Clicked " + listDataHeader.get(groupPosition),
                        Toast.LENGTH_SHORT).show();
                return false;
            }

        });

        // Listview Group expanded listener
        expListView.setOnGroupExpandListener(new OnGroupExpandListener() {

            // TODO Colapse Here Using this... in android
            int previousGroup = -1;
            boolean flag = false;

            @Override
            public void onGroupExpand(int groupPosition) {

                Log.e("keshav", "onGroupClick is -> " + groupPosition);

                Toast.makeText(getApplicationContext(),
                        listDataHeader.get(groupPosition) + " Expanded",
                        Toast.LENGTH_SHORT).show();

                if (groupPosition != previousGroup && flag) {
                    expListView.collapseGroup(previousGroup);
                }
                previousGroup = groupPosition;

                flag = true;

            }
        });


        // Listview Group collasped listener
        expListView.setOnGroupCollapseListener(new OnGroupCollapseListener() {

            @Override
            public void onGroupCollapse(int groupPosition) {
                Toast.makeText(getApplicationContext(),
                        listDataHeader.get(groupPosition) + " Collapsed",
                        Toast.LENGTH_SHORT).show();

            }
        });


        // Todo Listview on child click listener
        expListView.setOnChildClickListener(new OnChildClickListener() {

            @Override
            public boolean onChildClick(ExpandableListView parent, View v,
                                        int groupPosition, int childPosition, long id) {
                // TODO Auto-generated method stub
                Toast.makeText(
                        getApplicationContext(),
                        listDataHeader.get(groupPosition)
                                + " : "
                                + listDataChild.get(
                                listDataHeader.get(groupPosition)).get(
                                childPosition), Toast.LENGTH_SHORT)
                        .show();
                return false;
            }
        });
    }

    /*
     * Preparing the list data
     */
    private void prepareListData() {
        listDataHeader = new ArrayList<String>();
        listDataChild = new HashMap<String, List<String>>();

        // Adding child data
        listDataHeader.add("Months");
        listDataHeader.add("Top 250");
        listDataHeader.add("Now Showing");
        listDataHeader.add("Coming Soon..");


        // Adding child data
        List<String> weeks = new ArrayList<String>();
        weeks.add("Sunday");
        weeks.add("Monday");
        weeks.add("Tuesday");
        weeks.add("Wednesday");
        weeks.add("Thursday");
        weeks.add("Friday");
        weeks.add("Saturday");


        // Adding child data
        List<String> top250 = new ArrayList<String>();
        top250.add("Om Shanti Om");
        top250.add("Badshah");
        top250.add("Bahubali Part 1");
        top250.add("Carry on Jatta");
        top250.add("Sholey");
        top250.add("Mard");
        top250.add("Dewwar");


        List<String> nowShowing = new ArrayList<String>();
        nowShowing.add("Bahubali");
        nowShowing.add("Kabali");
        nowShowing.add("Luckky Di Unlukky Story");
        nowShowing.add("Sachin Billions Dream");
        nowShowing.add("Red 2");

        List<String> comingSoon = new ArrayList<String>();
        comingSoon.add("Tubelight ");
        comingSoon.add("Bahubali 3 2018");
        comingSoon.add("Dhoom 4");
        comingSoon.add("Hindi Medium");

        listDataChild.put(listDataHeader.get(0), weeks);
        listDataChild.put(listDataHeader.get(1), top250); // Header, Child data
        listDataChild.put(listDataHeader.get(2), nowShowing);
        listDataChild.put(listDataHeader.get(3), comingSoon);
    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:background="#f4f4f4" >

            <ExpandableListView
                android:id="@+id/lvExp"
                android:layout_height="match_parent"
                android:layout_width="match_parent"
                android:cacheColorHint="#00000000"/>   

</LinearLayout>

list_group.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:padding="8dp" 
    android:background="#000000">


    <TextView
        android:id="@+id/lblListHeader"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft"
        android:textSize="17dp"
        android:textColor="#f9f93d" />

</LinearLayout>


list_item.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="55dip"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/lblListItem"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:textSize="17dip"
        android:paddingTop="5dp"
        android:paddingBottom="5dp"
        android:textColor="#000000"
        android:paddingLeft="?android:attr/expandableListPreferredChildPaddingLeft" />

</LinearLayout>