Android StickyListHeadersListView头部悬停 分组列表实现

最近在做分组列表，头部悬停的效果，在github上就搜到了StickyListHeaders（https://github.com/emilsjolander/StickyListHeaders）这个库，自己动手实现了一个demo，实际效果图见文末。

引用类库：

implementation 'se.emilsjolander:stickylistheaders:2.7.0'

子布局item_pay_bill_month_body_list.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:id="@+id/item_body_tv1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:text="内容"
        android:textSize="20sp" />

    <TextView
        android:id="@+id/item_body_tv2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:text="内容"
        android:textSize="20sp" />

    <TextView
        android:id="@+id/item_body_tv3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:text="内容"
        android:textSize="20sp" />

    <TextView
        android:id="@+id/item_body_tv4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:text="内容"
        android:textSize="20sp" />

    <TextView
        android:id="@+id/item_body_tv5"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:text="内容"
        android:textSize="20sp" />

</LinearLayout>

头部布局item_pay_bill_month_header_list.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:id="@+id/item_head_tv"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#f00"
        android:text="头部"
        android:textSize="30sp" />
</LinearLayout>

列表适配器PayBillMonthListAdapter.java：

package com.aldx.hccraftsman.adapter;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import com.aldx.hccraftsman.R;
import com.aldx.hccraftsman.model.PayBillMonth;

import java.util.ArrayList;
import java.util.List;

import se.emilsjolander.stickylistheaders.StickyListHeadersAdapter;

/**
 * author: chenzheng
 * created on: 2018/11/3 11:24
 * description:
 */
public class PayBillMonthListAdapter extends BaseAdapter implements StickyListHeadersAdapter {

    private Context context;
    private List<PayBillMonth> monthList = new ArrayList<>();

    public PayBillMonthListAdapter(Context context) {
        this.context = context;
    }

    public void setItems(List<PayBillMonth> monthList) {
        this.monthList = monthList;
        notifyDataSetChanged();
    }

    //设置数据的个数
    @Override
    public int getCount() {
        return monthList.size();
    }

    //设置item的条数
    @Override
    public Object getItem(int i) {
        return monthList.get(i);
    }

    //获得相应数据集合中特定位置的数据项
    @Override
    public long getItemId(int i) {
        return i;
    }

    //获得头部相应数据集合中特定位置的数据项
    @Override
    public long getHeaderId(int position) {
        return monthList.get(position).yearmonth;
    }

    //绑定内容的数据
    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {

        BodyHolder bodyHolder = null;
        if (view == null) {
            view = LayoutInflater.from(context).inflate(R.layout.item_pay_bill_month_body_list, viewGroup, false);
            bodyHolder = new BodyHolder(view);
            view.setTag(bodyHolder);
        } else {
            bodyHolder = (BodyHolder) view.getTag();
        }
        //设置数据
        bodyHolder.bodyTv.setText(monthList.get(i).name);

        return view;
    }

    //绑定头部的数据
    @Override
    public View getHeaderView(int position, View convertView, ViewGroup parent) {

        HeadHolder headHolder = null;
        if (convertView == null) {
            convertView = LayoutInflater.from(context).inflate(R.layout.item_pay_bill_month_header_list, parent, false);
            headHolder = new HeadHolder(convertView);
            convertView.setTag(headHolder);
        } else {
            headHolder = (HeadHolder) convertView.getTag();
        }
        //设置数据
        headHolder.headTv.setText(monthList.get(position).monthName);

        return convertView;
    }

    //头部的内部类
    class HeadHolder {
        private TextView headTv;

        public HeadHolder(View itemHeadView) {

            headTv = (TextView) itemHeadView.findViewById(R.id.item_head_tv);
        }
    }

    //内容的内部类
    class BodyHolder {
        private TextView bodyTv;

        public BodyHolder(View itemBodyView) {

            bodyTv = (TextView) itemBodyView.findViewById(R.id.item_body_tv1);
        }
    }

}

 PayBillMonthListActivity.java：

package com.aldx.hccraftsman.activity;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.aldx.hccraftsman.R;
import com.aldx.hccraftsman.adapter.PayBillMonthListAdapter;
import com.aldx.hccraftsman.model.PayBillMonth;

import java.util.ArrayList;
import java.util.List;

import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;
import se.emilsjolander.stickylistheaders.StickyListHeadersListView;

/**
 * author: chenzheng
 * created on: 2018/11/3 14:36
 * description:  月度账单
 */
public class PayBillMonthListActivity extends BaseActivity {

    @BindView(R.id.back_iv)
    ImageView backIv;
    @BindView(R.id.layout_back)
    LinearLayout layoutBack;
    @BindView(R.id.title_tv)
    TextView titleTv;
    @BindView(R.id.right_tv)
    TextView rightTv;
    @BindView(R.id.layout_right)
    LinearLayout layoutRight;
    @BindView(R.id.stickyListView)
    StickyListHeadersListView stickyListView;

    private String companyId;
    private List<PayBillMonth> list = new ArrayList<>();
    private PayBillMonthListAdapter payBillMonthListAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_pay_bill_month_list);
        companyId = getIntent().getStringExtra("companyId");
        ButterKnife.bind(this);

        initView();
        initData();
    }

    private void initData() {
        for (int i = 0; i < 10; i++) {
            PayBillMonth p1 = new PayBillMonth();
            p1.yearmonth = 201811;
            p1.monthName = "2018年11月";
            p1.name = "詹大三" + i;
            list.add(p1);
        }
        for (int i = 0; i < 7; i++) {
            PayBillMonth p1 = new PayBillMonth();
            p1.yearmonth = 201810;
            p1.monthName = "2018年10月";
            p1.name = "刘丽丽" + i;
            list.add(p1);
        }
        for (int i = 0; i < 2; i++) {
            PayBillMonth p1 = new PayBillMonth();
            p1.yearmonth = 201809;
            p1.monthName = "2018年09月";
            p1.name = "姜大成" + i;
            list.add(p1);
        }
        payBillMonthListAdapter.setItems(list);
    }

    private void initView() {
        titleTv.setText("月度账单");

        payBillMonthListAdapter = new PayBillMonthListAdapter(this);
        stickyListView.setAdapter(payBillMonthListAdapter);

    }

    @OnClick({R.id.layout_back, R.id.layout_right})
    public void onViewClicked(View view) {
        switch (view.getId()) {
            case R.id.layout_back:
                finish();
                break;
            case R.id.layout_right:
                break;
        }
    }

    public static void startActivity(Context context, String companyId) {
        Intent intent = new Intent(context, PayBillMonthListActivity.class);
        intent.putExtra("companyId", companyId);
        context.startActivity(intent);
    }
}

页面布局activity_pay_bill_month_list.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <include
        android:id="@+id/include_id"
        layout="@layout/titlelayout_theme"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <se.emilsjolander.stickylistheaders.StickyListHeadersListView
        android:id="@+id/stickyListView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</LinearLayout>

 实体类PayBillMonth：

package com.aldx.hccraftsman.model;

/**
 * author: chenzheng
 * created on: 2018/11/3 14:18
 * description:
 */
public class PayBillMonth {

    public long yearmonth;
    public String monthName;
    public String name;
    public String money;
    public String time;
}

效果图：