Extends Baseadapter Appear Nullpointerexception

i am public class MyHomePageAdapter extends BaseAdapter and some code is: public static class ViewHolder{ public GridView myfriendsGridView; public Button myfriendsPre,myfr

Solution 1:

i have modify the code:

              lv=holder.listview;
          Viewprogress= mInflater.inflate(R.layout.usercenter_myhome_myfriends_loading_footer, null);
          switcher.addView(holder.footerBu);
          switcher.addView(progress);
          lv.addFooterView(switcher);

         if(ConstValue.myfriendsListInfo.size() > 0)
         {

             MyFriendssubSet=getDataSubset(0, NUMBER_OF_ITEMS_IN_COLUMN, ConstValue.myfriendsListInfo);
             adapter =newFriendsLazyAdapter((Activity) context, MyFriendssubSet);
             lv.setAdapter(adapter);
         }

i put the holder.listview to a new ListView,the problem is solve