A basic Android ExpandableListFragment (SavedTabsFragment) example.

saved_tabs.xml

<?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/list"
                        android:layout_height="match_parent"
                        android:layout_width="match_parent" />

</LinearLayout>

SavedTabsFragment.java

package com.advinture.ukuleletabs.fragments;

import android.app.ExpandableListActivity;
import android.app.Fragment;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.BaseExpandableListAdapter;
import android.widget.ExpandableListView;
import android.widget.TextView;
import com.advinture.ukuleletabs.R;

/**
 * Pieced together from:
 * Android samples: com.example.android.apis.view.ExpandableList1
 * http://androidword.blogspot.com/2012/01/how-to-use-expandablelistview.html
 * http://stackoverflow.com/questions/6938560/android-fragments-setcontentview-alternative
 * http://stackoverflow.com/questions/6495898/findviewbyid-in-fragment-android
 */
public class SavedTabsFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.saved_tabs, null);
        ExpandableListView elv = (ExpandableListView) v.findViewById(R.id.list);
        elv.setAdapter(new SavedTabsListAdapter());
        return v;
    }

    public class SavedTabsListAdapter extends BaseExpandableListAdapter {

        private String[] groups = { "People Names", "Dog Names", "Cat Names", "Fish Names" };

        private String[][] children = {
            { "Arnold", "Barry", "Chuck", "David" },
            { "Ace", "Bandit", "Cha-Cha", "Deuce" },
            { "Fluffy", "Snuggles" },
            { "Goldy", "Bubbles" }
        };

        @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 i1) {
            return children[i][i1];
        }

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

        @Override
        public long getChildId(int i, int i1) {
            return i1;
        }

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

        @Override
        public View getGroupView(int i, boolean b, View view, ViewGroup viewGroup) {
            TextView textView = new TextView(SavedTabsFragment.this.getActivity());
            textView.setText(getGroup(i).toString());
            return textView;
        }

        @Override
        public View getChildView(int i, int i1, boolean b, View view, ViewGroup viewGroup) {
            TextView textView = new TextView(SavedTabsFragment.this.getActivity());
            textView.setText(getChild(i, i1).toString());
            return textView;
        }

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

    }

}

Awesome post. Thanks a bunch :D

No problem, glad you found it useful!

Brilliant! Thanks.

Thanks! Needed this!

Thanks a lot for this. How would you go about styling it? The group headers in particular

@Racepace7 Override getGroupView and inflate a custom layout.

HI, can u get some info about styling list? add button and etc. Thanks a lot!

Thanks a lot for this :) ,

Thanks!! :)

Thanks a lot... :)

thanks a lot

Save my day, thanks a lot!!!

thanks alot,,,,,,,,,,,,,,

Please help me ..i'm getting "classcast exception"

how to set image to the above ex_listview???

Saved me. Thanks alot!

Still wondering how do you format the style and text for this very handy expandable list.

Or how to use an inflater from another xml files. Thanks in advance.

you can pass the context in the constructor for SavedTabsListAdapter and then inflate the custom xml layout for group and child views.

thank u. you have saved my design, i was stack for so a long period of time before founding this code.

Sir , how can i use OnClickListners on the sub items of list to open a new activity.

This is awesome and super concise, thanks you so much!

Please give an example for how to inflate custom layout for group header and items ?

Thanks. This is working

thanks a lott....its working very fine

thankyou