لیست ویو تودرتو (Nested ListView)

درود

ببین این بدردت میخوره لینک

میخوام از ExpandableListView به صورت تو در تو استفاده کنم یعنی چیلد های لیست هر کدوم یک Expandable باشن

در برنامه فقط تونستم یک لیست رو استفاده کنم

public class MainActivity extends AppCompatActivity{

DrawerLayout mDrawerlayout;
ExpandableListView mDrawerList_Left,mDrawerList_Right;
ImageButton ImgBtnRight , ImgBtnLeft;
RecyclerView Recycler;

private ExpandListAdapter ExpAdapter;
private ArrayList<Group> ExpListItems;
private ParentChildAdapter Adp;

private ArrayList<SuperGroup> sExpListItems;

Context context;


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

    context =MainActivity.this;



    mDrawerList_Left=(ExpandableListView)findViewById(R.id.drawer_list_left);
    mDrawerList_Right=(ExpandableListView)findViewById(R.id.drawer_list_right);


    ExpListItems = SetStandardGroups();
    ExpAdapter = new ExpandListAdapter(context,ExpListItems);
    mDrawerList_Left.setAdapter(ExpAdapter);


}

public ArrayList<Group> SetStandardGroups() {

    String group_names[] = { "GROUP A", "GROUP B", "GROUP C", "GROUP D",
            "GROUP E", "GROUP F", "GROUP G", "GROUP H" };

    String country_names[] = { "Brazil", "Mexico", "Croatia", "Cameroon",
            "Netherlands", "chile", "Spain", "Australia", "Colombia",
            "Greece", "Ivory Coast", "Japan", "Costa Rica", "Uruguay",
            "Italy", "England", "France", "Switzerland", "Ecuador",
            "Honduras", "Agrentina", "Nigeria", "Bosnia and Herzegovina",
            "Iran", "Germany", "United States", "Portugal", "Ghana",
            "Belgium", "Algeria", "Russia", "Korea Republic" };

    int Images[] = { R.drawable.myic, R.drawable.myic,
            R.drawable.myic, R.drawable.myic, R.drawable.myic,
            R.drawable.myic, R.drawable.myic, R.drawable.myic,
            R.drawable.myic, R.drawable.myic, R.drawable.myic,
            R.drawable.myic, R.drawable.myic, R.drawable.myic,
            R.drawable.myic, R.drawable.myic, R.drawable.myic,
            R.drawable.myic, R.drawable.myic,
            R.drawable.myic, R.drawable.myic, R.drawable.myic,
            R.drawable.myic, R.drawable.myic, R.drawable.myic,
            R.drawable.myic, R.drawable.myic, R.drawable.myic,
            R.drawable.myic, R.drawable.myic, R.drawable.myic,
            R.drawable.myic };

    ArrayList<Group> list = new ArrayList<Group>();

    ArrayList<Child> ch_list;

    int size = 4;
    int j = 0;

    for (String group_name : group_names) {
        Group gru = new Group();
        gru.setName(group_name);

        ch_list = new ArrayList<Child>();
        for (; j < size; j++) {
            Child ch = new Child();
            ch.setName(country_names[j]);
            ch.setImage(Images[j]);
            ch_list.add(ch);
        }
        gru.setItems(ch_list);
        list.add(gru);

        size = size + 4;
    }

    return list;
}

}

و این ادپترش هست

public class ExpandListAdapter extends BaseExpandableListAdapter {
private Context context;
private ArrayList<Group> groups;

public ExpandListAdapter(Context context, ArrayList<Group> groups) {
    this.context = context;
    this.groups = groups;
}

@Override
public Object getChild(int groupPosition, int childPosition) {
    ArrayList<Child> chList = groups.get(groupPosition).getItems();
    return chList.get(childPosition);
}

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

@Override
public View getChildView(int groupPosition, int childPosition,
                         boolean isLastChild, View convertView, ViewGroup parent) {

    Child child = (Child) getChild(groupPosition, childPosition);
    if (convertView == null) {
        LayoutInflater infalInflater = (LayoutInflater) context
                .getSystemService(context.LAYOUT_INFLATER_SERVICE);
        convertView = infalInflater.inflate(R.layout.child_item, null);
    }
    TextView tv = (TextView) convertView.findViewById(R.id.country_name);
    ImageView iv = (ImageView) convertView.findViewById(R.id.flag);

    tv.setText(child.getName().toString());
    iv.setImageResource(child.getImage());

    return convertView;
}

@Override
public int getChildrenCount(int groupPosition) {
    ArrayList<Child> chList = groups.get(groupPosition).getItems();
    return chList.size();
}

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

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

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

@Override
public View getGroupView(int groupPosition, boolean isExpanded,
                         View convertView, ViewGroup parent) {
    Group group = (Group) getGroup(groupPosition);
    if (convertView == null) {
        LayoutInflater inf = (LayoutInflater) context
                .getSystemService(context.LAYOUT_INFLATER_SERVICE);
        convertView = inf.inflate(R.layout.group_item, null);
    }
    TextView tv = (TextView) convertView.findViewById(R.id.group_name);
    tv.setText(group.getName());
    return convertView;
}

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

@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
    return true;
}

}