嵌套的RecyclerView带标题 标签筛选 头饰

参考文章:【Android 仿微信通讯录 导航分组列表-上】使用ItemDecoration为RecyclerView打造带悬停头部的分组列表.

Demo:github传送门

使用要点

1.定义列表：

private List<YearElectricResponse.DeviceElectrics> deviceElectricsReturn = new ArrayList<>();

2.recyclerView设置和decoration（自己写Adapter）

adapter = new ...;
recyclerView.setLayoutManager(new LinearLayoutManager(getContext(), LinearLayoutManager.VERTICAL, false));
adapter.bindToRecyclerView(recyclerView);
decoration = new SuspensionDecoration(getContext(),deviceElectricsReturn).setColorTitleFont(R.color.front_gray)
                            .setTitleLeftPadding(18)
                            .setmTitleHeight(35);
recyclerView.addItemDecoration(decoration);

3.添加接口

 public static class DeviceElectrics implements ISuspensionInterface {
        private float value;
        private int month;
        private int year;

        public float getValue() {
            return value;
        }

        public void setValue(float value) {
            this.value = value;
        }

        public int getMonth() {
            return month;
        }

        public void setMonth(int month) {
            this.month = month;
        }

        public int getYear() {
            return year;
        }

        public void setYear(int year) {
            this.year = year;
        }

       //重点是下面这两个
        @Override
        public boolean isShowSuspension() {
            return true;
        }

        @Override
        public String getSuspensionTag() {

            String show = String.valueOf(year);
            return show;
        }
    }

4.就这样可以了，至于原理看最上面的博客