ExpandableListView getGroupView friom子控件

Question

在可扩展列表视图中，我想根据子视图中选定的控件更新其中一个组视图图像，如何实现？？ 基本上 我想要这样

public View  getChildview(int groupPosition,final int childPosition, boolean isLastChild, View convertView,ViewGroup parent)
{

  View Groupview=parent.getChildAt(groupPosition); ///but gives null when if scrolling the expandablelist

}

编辑 下面的代码对我有用

public View getGroupView(ExpandableListView listView, int groupPosition) {
  long packedPosition = ExpandableListView.getPackedPositionForGroup(groupPosition);
  int flatPosition = listView.getFlatListPosition(packedPosition);
  int first = listView.getFirstVisiblePosition();
  return listView.getChildAt(flatPosition - first);
}

Answer 1

getGroupView() – Returns view for the list group header
getChildView() – Returns view for list child item
So u must create/inflate view in getChildView method 

更多详情：
http://www.androidhive.info/2013/07/android-expandable-list-view-tutorial/

Answer 2

我建议使用 OnChildClickListener 并覆盖 onChildClick() 并使用此 code 获取父视图。