需要的jar包

com.google.code.gson:gson:2.8.5
還有一個依賴類pulltolibrary

xml的程式碼

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <com.example.pulltolibrary.PullToRefreshListView
        android:id="@+id/Pull_To_Re"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
    </com.example.pulltolibrary.PullToRefreshListView>

</android.support.constraint.ConstraintLayout>
 

介面卡

package com.bwie.administrator.pulltorefresh.adapter;

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

import com.bwie.administrator.pulltorefresh.R;
import com.bwie.administrator.pulltorefresh.bean.MyData;

import java.util.ArrayList;

public class MyAdapter extends BaseAdapter {
    private Context context;
    private ArrayList<MyData.DataBean> datas;

    public MyAdapter(Context context, ArrayList<MyData.DataBean> datas) {
        this.context = context;
        this.datas = datas;
    }

    public ArrayList<MyData.DataBean> getDatas() {
        return datas;
    }

    public void setDatas(ArrayList<MyData.DataBean> datas) {
        this.datas = datas;
    }

    @Override
    public int getCount() {
        return datas.size();
    }

    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder = null;
        if (convertView == null) {
            holder = new ViewHolder();
            convertView = View.inflate(context, R.layout.listview_item, null);
            holder.tv_name = convertView.findViewById(R.id.ListView_Title);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }
        //賦值
        holder.tv_name.setText(datas.get(position).getNews_title());
        return convertView;
    }
    class ViewHolder {
        TextView tv_name;
    }
}
 

BaseActivity基類抽取

package com.bwie.administrator.pulltorefresh.baseactivity;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.view.View;

public abstract class BaseActivity extends AppCompatActivity implements View.OnClickListener {

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        init();
    }


    //用來更改頁面佈局
    protected abstract int getLayoutId();

    //初始化資料
    protected abstract void initData();

    //初始化元件
    protected abstract void findViewById();

    //獲取上一個頁面傳過來的引數
    protected abstract void getNextData();

    //註冊監聽
    protected abstract void setlistener();

    //頁面邏輯書寫
    protected abstract void progressLogic();

    void init() {
        if (getLayoutId() != 0) {
            setContentView(getLayoutId());
            initData();
            findViewById();
            getNextData();
            setlistener();
            progressLogic();
        } else {
            throw new IllegalArgumentException("請加上佈局檔案");
        }
    }
}
 

Activity的程式碼

package com.bwie.administrator.pulltorefresh;

import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.ListView;

import com.bwie.administrator.pulltorefresh.adapter.MyAdapter;
import com.bwie.administrator.pulltorefresh.baseactivity.BaseActivity;
import com.bwie.administrator.pulltorefresh.bean.MyData;
import com.example.pulltolibrary.PullToRefreshBase;
import com.example.pulltolibrary.PullToRefreshListView;
import com.google.gson.Gson;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

public class MainActivity extends BaseActivity {
    private PullToRefreshListView pull;
    private Context context;
    private MyAdapter adapter;
    private ArrayList<MyData.DataBean> mdatas = new ArrayList<>();
    private int mStart = 1;
    private String mUrl = "http://api.expoon.com/AppNews/getNewsList/type/1/p/";
    private Handler handler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            //進行判斷
            if (msg.what == 0) {
                mdatas.addAll((List<MyData.DataBean>) msg.obj);
                //進行重新整理
                adapter.notifyDataSetChanged();
                //取消一直重新整理的方法
                pull.onRefreshComplete();
            }
        }
    };

    @Override
    protected int getLayoutId() {
        return R.layout.activity_main;
    }

    @Override
    protected void initData() {
    }

    private void getData(final int index) {
        new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    URL url = new URL(mUrl + index);
                    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                    //進行判斷
                    if (connection.getResponseCode() == 200) {
                        InputStream stream = connection.getInputStream();
                        BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
                        Gson gson = new Gson();
                        MyData myData = gson.fromJson(reader, MyData.class);
                        handler.sendMessage(handler.obtainMessage(0, myData.getData()));
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }).start();
    }

    @Override
    protected void findViewById() {
        pull = findViewById(R.id.Pull_To_Re);
        //設定上下拉滑動的
        pull.setMode(PullToRefreshBase.Mode.BOTH);
        adapter = new MyAdapter(MainActivity.this, mdatas);
        pull.setAdapter(adapter);
    }

    @Override
    protected void getNextData() {

    }

    //監聽的方法
    @Override
    protected void setlistener() {
        pull.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {
            @Override //滑鼠按下
            public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
                mStart = 1;
                mdatas.clear();
                getData(mStart);
            }

            @Override //滑鼠擡起
            public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
                mStart++;
                getData(mStart);
            }
        });
    }

    @Override
    protected void progressLogic() {
        getData(mStart);
    }

    @Override
    public void onClick(View v) {

    }
}

以上