首个Group小图标固定不变，无法根据伸缩切换图标

[LXLYHM]

@OverRide
public void updatePinnedHeader(View headerView, int firstVisibleGroupPos) {
Group firstVisibleGroup = (Group) adapter.getGroup(firstVisibleGroupPos);
TextView textView = (TextView) headerView.findViewById(R.id.group);
ImageView image = (ImageView) headerView.findViewById(R.id.image);
textView.setText(firstVisibleGroup.getTitle());
}
悬浮Group头部这里无法改变image状态

[hongxialiu]

楼上解决了吗？