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copied!<p>Actually there is a simple way.</p> <ol> <li><p>Edit your XML related to the group view like this:</p> <pre><code><?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginRight="35dp" android:orientation="horizontal" > <TextView android:id="@+id/videos_explist_groupname" android:layout_width="match_parent" android:layout_height="?android:attr/listPreferredItemHeight" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_toLeftOf="@+id/videos_group_indicator" android:gravity="center" android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft" android:textAppearance="?android:attr/textAppearanceListItem" /> <ImageView android:id="@+id/videos_group_indicator" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_centerVertical="true" android:src="@drawable/videos_chevron_collapsed" /> </RelativeLayout> </code></pre> <p>See how the <code>ImageView</code> is on the right of the <code>TextView</code>.</p></li> <li><p>Edit your <code>ExpandableListAdapter</code> as follows:</p> <pre><code>@Override public View getGroupView(final int groupPosition, final boolean isExpanded, final View convertView, final ViewGroup parent) { View v; if (convertView == null) { v = newGroupView(isExpanded, parent); } else { v = convertView; } bindView(v, mGroupData.get(groupPosition), mGroupFrom, mGroupTo); ((ImageView) v.findViewById(R.id.videos_group_indicator)) .setImageResource(isExpanded?R.drawable.videos_chevron_expanded:R.drawable.videos_chevron_collapsed); return v; } </code></pre> <p>As you can see you can easily set the drawable corresponding to the group state.</p></li> </ol> <p>I know the question was asked a long time ago, but this may help somebody.</p>

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