令人纠结的ExpandableListView的onChildClick事件无法跳转,该如何处理

 @Override
    public boolean onChildClick(ExpandableListView parent, View v,
            int groupPosition, int childPosition, long id) {
            //do something
    //    String pos=parent.getItemAtPosition(childPosition).toString();
      // Toast.makeText(Stu80Activity.this,groupPosition+childPosition+"", Toast.LENGTH_LONG).show(); 
        String pos=groupPosition+"-"+childPosition;
        String param="";
        if(pos.equals("0-0"))
        {
            param="1";
        }
        if(pos.equals("0-1"))
        {
            param="2";
        }
        if(pos.equals("0-2"))
        {
            param="3";
        }
        //
        if(pos.equals("1-0"))
        {
            param="11";
        }
        if(pos.equals("1-1"))
        {
            param="4";
        }
        if(pos.equals("1-2"))
        {
            param="5";
        }
        if(pos.equals("1-3"))
        {
            param="14";
        }
        if(pos.equals("1-4"))
        {
            param="6";
        }
        //
        if(pos.equals("2-0"))
        {
            param="10";
        }
        //
        if(pos.equals("3-0"))
        {
            param="7";
        }
        if(pos.equals("3-1"))
        {
            param="8";
        }
        if(pos.equals("3-2"))
        {
            param="9";
        }
        //
        if(pos.equals("4-0"))
        {
            param="12";
        }
        if(pos.equals("4-1"))
        {
            param="13";
        }
        //
        if(pos.equals("5-0"))
        {
            param="16";
        }
        if(pos.equals("5-1"))
        {
            param="17";
        }
        if(pos.equals("5-2"))
        {
            param="18";
        }
        //
        if(pos.equals("6-0"))
        {
            param="19";
        }
        if(pos.equals("6-1"))
        {
            param="20";
        }
        //
        if(pos.equals("7-0"))
        {
            param="23";
        }
        if(pos.equals("7-1"))
        {
            param="24";
        }
        if(pos.equals("7-2"))
        {
            param="25";
        }if(pos.equals("7-3"))
        {
            param="26";
        }
        if(pos.equals("7-4"))
        {
            param="27";
        }
        if(pos.equals("7-5"))
        {
            param="28";
        }
        //
        if(pos.equals("8-0"))
        {
            param="21";
        }
        if(pos.equals("8-1"))
        {
            param="15";
        }
        //Toast.makeText(Stu80Activity.this,param, Toast.LENGTH_LONG).show(); 
        
        /*Intent intent=new Intent();
        intent.setClass(Stu80Activity.this,list.class);
        Bundle bundle=new Bundle();
        bundle.putString("param", param);
        intent.putExtras(bundle);
        startActivity(intent);*/
        
        Intent intent = new Intent(Stu80Activity.this,list.class);
        startActivity(intent);
        
        return false;
       // return super.onChildClick(parent, v, groupPosition, childPosition, id);
    }