更改组ExpendbleListView的颜色在android中不起作用

Question

您好我使用此代码在用户点击组时更改组的背景，并且组是折叠

expListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {

            @Override
            public boolean onGroupClick(ExpandableListView parent, View v,
                                        int groupPosition, long id) {
                if (!parent.isGroupExpanded(groupPosition)) {
                    v.setBackgroundColor(Color.parseColor("#ff9600"));
                } else  {
                    v.setBackgroundColor(Color.parseColor("#4fc1e9"));

                }
                if (parent.isGroupExpanded(groupPosition)) {
                    Toast.makeText(AdieActivity.this,String.valueOf( groupPosition), Toast.LENGTH_SHORT).show();
                }


                return false;
            }
        });

当用户点击并分组操作时，背景颜色会改变，但问题是，某些组未打开但背景也发生了变化

Answer 1

重写的方法包含在我的自定义ExpandableListAdapter中。

@Override
public View getGroupView(int groupPosition, boolean isExpanded,
    View view, ViewGroup parent)
{
     LinearLayout bevGroup = (LinearLayout) view.findViewById(R.id.myid);

if(isExpanded)
{
    bevGroup.setBackgroundColor(context.getResources().getColor(R.color.bgGroupBlack));
}
else
{
    bevGroup.setBackgroundColor(context.getResources().getColor(R.color.bgTransparent));
}
}