PullToRefresh列表展示

导入PullToRefresh库
主布局

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

item布局

<?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="horizontal">
<ImageView
    android:layout_width="50dp"
    android:layout_height="50dp"
    android:id="@+id/img_View"/>
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/Get_Title"/>
</LinearLayout>

对应适配器

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

import com.bumptech.glide.Glide;
import com.example.week3_moni.R;
import com.example.week3_moni.bean.MyBean;

import java.util.List;

public class MyAdapter extends BaseAdapter {
    private Context mContext;
    private List<MyBean.DataBean> datas;

    public MyAdapter(Context mContext, List<MyBean.DataBean> datas) {
        this.mContext = mContext;
        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) {
        HolderView holderView = null;
        if (convertView == null) {
            convertView = View.inflate(mContext, R.layout.c1_adapter, null);
            holderView = new HolderView();
            holderView.img_View = convertView.findViewById(R.id.img_View);
            holderView.Get_Title = convertView.findViewById(R.id.Get_Title);
            convertView.setTag(holderView);
        } else {
            holderView = (HolderView) convertView.getTag();
        }
        holderView.Get_Title.setText(datas.get(position).getNews_title());
        Glide.with(mContext).load(datas.get(position).getPic_url()).into(holderView.img_View);

        return convertView;
    }

    class HolderView {
        ImageView img_View;
        TextView Get_Title;
    }
}

MainActivity

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;

import com.example.pulltolibrary.PullToRefreshBase;
import com.example.pulltolibrary.PullToRefreshListView;
import com.example.week3_moni.R;
import com.example.week3_moni.adapter.MyAdapter;
import com.example.week3_moni.bean.MyBean;
import com.example.xlistviewflush.view.XListView;
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 C2Fragment extends Fragment implements View.OnClickListener {
    private XListView XList_View;
    private String mUrl = "http://api.expoon.com/AppNews/getNewsList/type/1/p/";
    private int mStartPage = 1;
    private List<MyBean.DataBean> data = new ArrayList<>();
    private PullToRefreshListView Pull_to_Refresh;
    private MyAdapter adapter;
    private Handler mHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            if (msg.what == 0) {
                data.addAll((List<MyBean.DataBean>) msg.obj);
                adapter.notifyDataSetChanged();
                //取消一直刷新的方法
                Pull_to_Refresh.onRefreshComplete();
            }
        }
    };

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.c2_item, null);
        initView(v);
        setListener();
        getTheData(mStartPage);
        return v;
    }


    private void initView(View v) {
        Pull_to_Refresh = (PullToRefreshListView) v.findViewById(R.id.Pull_to_Refresh);
        Pull_to_Refresh.setMode(PullToRefreshBase.Mode.BOTH);
        adapter = new MyAdapter(getActivity().getApplicationContext(), data);
        Pull_to_Refresh.setAdapter(adapter);
    }

    private void setListener() {
        Pull_to_Refresh.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {
            //下拉刷新
            @Override
            public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
                mStartPage = 1;
                data.clear();
                getTheData(mStartPage);
            }

            //上拉加载
            @Override
            public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
                mStartPage++;
                getTheData(mStartPage);
            }
        });
    }

    private void getTheData(final int i) {
        new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    URL url = new URL(mUrl + i);
                    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                    if (connection.getResponseCode() == 200) {
                        InputStream inputStream = connection.getInputStream();
                        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
                        Gson gson = new Gson();
                        MyBean myBean = gson.fromJson(reader, MyBean.class);
                        mHandler.sendMessage(mHandler.obtainMessage(0, myBean.getData()));

                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }).start();
    }

    @Override
    public void onClick(View v) {

    }
}