Listview 不滚动的可扩展列表

hy，我在滚动视图上有一个可扩展列表。视图正在滚动，但我的可扩展列表没有滚动。有什么建议吗？ 这是列表的代码。我还将属性中列表的滚动属性设置为true，但没有结果？列表中的项目是可单击的，它们会对单击作出响应，但列表仍不正常。请给出建议

     ExpandableListView listview= (ExpandableListView)        findViewById(R.id.expandableListView1);

 GundamExpAdapter gea = new GundamExpAdapter(this);

        ArrayList<String> models = new ArrayList<String>();
        models.add("Turn on silent profile");
        models.add("Turn off silent profile");
        models.add("Turn on wifi");
        models.add("Turn off wifi");
        models.add("Turn on gps");
        models.add("Turn off gps");
            gea.AddGroup("Functionalities", models);
        listview.setAdapter(gea);
        //ExpandableListView elv = getExpandableListView();
        listview.setTextFilterEnabled(true);
        listview.setEnabled(true);

这是我的列表的适配器：

      public class GundamExpAdapter extends BaseExpandableListAdapter
   {
    /*-------------------------- Fields --------------------------*/

    private final HashMap<String, ArrayList<String>> myData = new HashMap<String, ArrayList<String>>();
    private final HashMap<Integer, String> lookUp = new HashMap<Integer, String>();
    private final Context context;

    public  class ViewHolder {
        TextView textView;


    }


    /*-------------------------- Public --------------------------*/

    public GundamExpAdapter(final Context con)
    {
        context = con;
    }

    public boolean AddGroup(final String groupName, final ArrayList<String> list)
    {
        final ArrayList<String> prev = myData.put(groupName, list);

        if (prev != null)
            return false;

        lookUp.put(myData.size() - 1, groupName);

        notifyDataSetChanged();
        return true;
    }

    public Object getChild(int groupPos, int childPos) 
    {
        if (lookUp.containsKey(groupPos))
        {
            final String str = lookUp.get(groupPos);
            final ArrayList<String> data = myData.get(str);

            return data.get(childPos);
        }

        return null;
    }

    public long getChildId(int groupPos, int childPos) 
    {  
        return 0;
    }

    public View getChildView(int groupPos, int childPos, boolean isLastChild, 
                             View convertView, ViewGroup parent) 
    {

         if (convertView == null) {
                LayoutInflater infalInflater = LayoutInflater.from(context);

                convertView = infalInflater.inflate(R.layout.childrow, null);
            }

            TextView textView = (TextView) convertView.findViewById(R.id.textView1row);
            textView.setText(getChild(groupPos, childPos).toString());
            textView.setTypeface(font);
            return convertView;

    }

    public int getChildrenCount(int groupPos) 
    {
        if (lookUp.containsKey(groupPos))
            return myData.get(lookUp.get(groupPos)).size();

        return 0;
    }

    public Object getGroup(int groupPos) 
    {
        if (lookUp.containsKey(groupPos))
            return myData.get(lookUp.get(groupPos));

        return null;
    }

    public int getGroupCount() 
    {
        return myData.size();
    }

    public long getGroupId(int groupPos) 
    {
        return 0;
    }

    public View getGroupView(int groupPos, boolean isExpanded, View convertView, ViewGroup parent) 
    {
         ViewHolder holder = null;
            if (convertView == null) {
                holder = new ViewHolder();
                LayoutInflater    infalInflater = LayoutInflater.from(context);

                    convertView = infalInflater.inflate(R.layout.childrow, null,
                            false);
                    holder.textView = (TextView) convertView
                            .findViewById(R.id.textView1row);
                    //Log.d("heading", getGroup(groupPosition).toString());
                    holder.textView.setText("Functionalities");
                    holder.textView.setPadding(50, 0, 0, 0);
                    holder.textView.setTypeface(font);
                    holder.textView.setTextSize(22);
                    holder.textView.setTextColor(android.R.color.darker_gray);


            }

        return convertView;

    }

    public boolean hasStableIds() 
    {
        return false;
    }

    public boolean isChildSelectable(int groupPos, int childPos) 
    {
        return true;
    }






}
enter code here