关于ExpandableListView设置分组各种事件中背景切换错误混乱问题

在ExpandableListView的getGroupView（）中

if (isExpanded == true&&groupPosition != 3)
{ 

convertView.setBackgroundResource(R.drawable.settings_tit_bg_move);}

else{convertView.setBackgroundResource(R.drawable.setting_group);
}

Res/drawable/setting_group:
 <item android:state_pressed="true" android:drawable="@drawable/settings_tit_bg_move" />                      

 <item android:state_focused="true" android:drawable="@drawable/settings_tit_bg_move" />     

 <item android:state_selected="true"   android:drawable="@drawable/settings_tit_bg_move" /> 
 <item android:drawable="@drawable/settings_tit_bg_normal" />  </selector>

完成！