ExpandableListView 解决子级背景色混乱 和父级展开项唯一效果实现

先上效果图：

@BindView(R.id.expandList)
ExpandableListView expandableListView;

ExpandableListViewAdapter expandableListViewAdapter;

public static int childPositionCurrent =-1;
public static int groupPositionCurrent=-1;

String[] arrayGroupList = new String[]{"陈奕迅", "许嵩", "陈粒", "毛不易"};
String[][] arrayChildList = new String[][]{
        {"富士山下", "红玫瑰", "孤独患者", "不要说话"},
        {"雅俗共赏", "山水之间", "内线", "大千世界"},
        {"小半", "祝星", "易燃易爆炸", "奇妙能力歌"},
        {"消愁", "像我这样的人", "牧马城市", "借"}
};


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    expandableListViewAdapter = new ExpandableListViewAdapter(arrayGroupList, arrayChildList);

    expandableListView.setAdapter(expandableListViewAdapter);
    expandableListViewAdapter.setOnGroupExpandedListener(new ExpandableListViewAdapter.GroupClickListener() {
        @Override
        public void onGroupClickListener(int groupPosition) {
            expandOnlyOne(groupPosition);
        }


    });


    expandableListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {
        @Override
        public boolean onGroupClick(ExpandableListView expandableListView, View view, int i, long l) {
            return false;
        }
    });

    expandableListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
        @Override
        public boolean onChildClick(ExpandableListView expandableListView, View view, int groupPosition, int childPosition, long l) {


            childPositionCurrent = childPosition;
            groupPositionCurrent = groupPosition;

            expandableListViewAdapter.notifyDataSetChanged();

            return true;
        }
    });

}

Adapter里面的 主要代码：

@Override
public View getChildView(int groupPosition, int childPosition, boolean b, View view, ViewGroup viewGroup) {

    ChildrenViewHolder childrenViewHolder;

    if (view == null) {
        view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_child_text, viewGroup, false);
        childrenViewHolder = new ChildrenViewHolder();
        childrenViewHolder.childrenText = view.findViewById(R.id.childrenText);
        
        view.setTag(childrenViewHolder);
    } else {
        childrenViewHolder = (ChildrenViewHolder) view.getTag();
    }

    childrenViewHolder.childrenText.setText(arrayChildList[groupPosition][childPosition]);
    if (ExpandableListViewActivity.childPositionCurrent == childPosition && ExpandableListViewActivity.groupPositionCurrent == groupPosition) {
        childrenViewHolder.childrenText.setTextColor(Color.parseColor("#f2927b"));
    } else {
        childrenViewHolder.childrenText.setTextColor(Color.parseColor("#000000"));
    }
    return view;
}