xlistview上拉加载下拉刷新以及图片和布局

别忘记添加xlistview插件
1xlistview布局

<com.qy.xlistview.XListView
    android:id="@+id/xListView"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
</com.qy.xlistview.XListView>

2activity上拉加载下拉刷新以及adapter

package com.example.moni.frag;

import android.os.Bundle;
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 com.example.moni.R;
import com.example.moni.adapter.MyAdapter;
import com.example.moni.bean.JsonBean;
import com.example.moni.http.Http;
import com.google.gson.Gson;
import com.qy.xlistview.XListView;

import java.util.List;
public class FragList extends Fragment {
    
    private MyAdapter myAdapter;
    private List<JsonBean.DataBean> list;
    private XListView xListView;
    private String str="http://api.expoon.com/AppNews/getNewsList/type/1/p/1";

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view=inflater.inflate(R.layout.fraglist,container,false);
        //1找控件
        xListView = view.findViewById(R.id.xListView);
        //2启动true或禁用false上拉加载（不写实现不了）
        xListView.setPullLoadEnable(true);
        //3注册
        xListView.setXListViewListener(new XListView.IXListViewListener() {
            @Override
            public void onRefresh() {//8下拉刷新
                Http.HttpAsynTask(str, new Http.CallBackString() {



                    @Override
                    public void getData(String s) {
                        Gson gson = new Gson();
                        JsonBean bean = gson.fromJson(s, JsonBean.class);
                        list = bean.getData();
                        myAdapter = new MyAdapter(getActivity(),list);
                        xListView.setAdapter(myAdapter);
                        onLoad();
                    }
                });

            }

            @Override
            public void onLoadMore() {//7上拉加载
                //数据调用的方法
                Http.HttpAsynTask(str, new Http.CallBackString() {
                    @Override
                    public void getData(String s) {
                        Gson gson = new Gson();
                        JsonBean bean = gson.fromJson(s, JsonBean.class);
                        List<JsonBean.DataBean> data = bean.getData();
                        list.addAll(data);
                        myAdapter.notifyDataSetChanged();
                        onLoad();
                    }
                });

            }
        });
        Http.HttpAsynTask(str, new Http.CallBackString() {



            @Override
            public void getData(String s) {
                //5解析
                Gson gson = new Gson();
                JsonBean bean = gson.fromJson(s, JsonBean.class);
                list = bean.getData();
                //6适配器
                myAdapter = new MyAdapter(getActivity(),list);
                xListView.setAdapter(myAdapter);
            }
        });
        return view;
    }
    private void onLoad() {
        //停止加载更多，重置头视图
        xListView.stopRefresh();
        //停止加载更多，重置脚视图
        xListView.stopLoadMore();
        //设置刷新时间
        xListView.setRefreshTime("刚刚刷新了");
    }
}

3adapter中的配置

package com.example.moni.adapter;

import android.content.Context;
import android.support.v4.app.FragmentActivity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.example.moni.R;
import com.example.moni.bean.JsonBean;
import com.nostra13.universalimageloader.core.ImageLoader;

import java.util.List;

public class MyAdapter extends BaseAdapter {
    private Context mContext;
    private List<JsonBean.DataBean> list;

    public MyAdapter(Context context, List<JsonBean.DataBean> list) {
        this.mContext=context;
        this.list=list;
    }

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

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

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

    @Override
    public int getViewTypeCount() {
        return 2;
    }

    @Override
    public int getItemViewType(int position) {
        return  position%2;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        switch (getItemViewType(position)){
            case 0:
                ViewHolder holder;
                if(convertView==null){
                    convertView=LayoutInflater.from(mContext).inflate(R.layout.itme,null);
                    holder=new ViewHolder();
                    holder.textview=(TextView)convertView.findViewById(R.id.textview);
                    holder.imageView=(ImageView)convertView.findViewById(R.id.imageview);
                    convertView.setTag(holder);
                }else{
                    holder=(ViewHolder)convertView.getTag();
                }
                holder.textview.setText(list.get(position).getNews_title());
                JsonBean.DataBean dataBean = list.get(position);
                String s = dataBean.getPic_url();
                ImageLoader.getInstance().displayImage(s,holder.imageView);
                break;
            case 1:
                ViewHolder1 holder1;
                if(convertView==null){
                    convertView=LayoutInflater.from(mContext).inflate(R.layout.itme1,null);
                    holder1=new ViewHolder1();
                    holder1.textview1=(TextView)convertView.findViewById(R.id.textview1);
                    holder1.imageView1=(ImageView)convertView.findViewById(R.id.imageview1);
                    convertView.setTag(holder1);
                }else{
                    holder1=(ViewHolder1)convertView.getTag();
                }
                holder1.textview1.setText(list.get(position).getNews_title());
                JsonBean.DataBean dataBean1 = list.get(position);
                String str = dataBean1.getPic_url();
                ImageLoader.getInstance().displayImage(str,holder1.imageView1);
                break;
        }
        return convertView;
    }
    class ViewHolder{
        private TextView textview;
        private ImageView imageView;
    }
    class ViewHolder1{
        private TextView textview1;
        private ImageView imageView1;
    }
}

两个布局文件中的布局类型

<?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:id="@+id/imageview"
        android:layout_width="100dp"
        android:layout_height="100dp" />
    <TextView
        android:id="@+id/textview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>

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

    <ImageView
        android:id="@+id/imageview1"
        android:layout_width="100dp"
        android:layout_height="100dp"
        android:layout_centerInParent="true"
        android:layout_alignParentRight="true"
        android:layout_marginRight="0dp"/>

    <TextView
        android:id="@+id/textview1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/imageview1"
        android:layout_marginEnd="2dp"
        android:layout_toStartOf="@+id/imageview1"/>
</RelativeLayout>

4imageloader中的图片设置

package com.example.moni.app;

import android.app.Application;

import com.example.moni.R;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
import com.nostra13.universalimageloader.core.display.CircleBitmapDisplayer;
public class App extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        DisplayImageOptions options = new DisplayImageOptions.Builder()
                .showImageOnLoading(R.mipmap.zhan)
                .showImageOnFail(R.mipmap.shibai)
                //设置圆角
                .displayer(new CircleBitmapDisplayer())
                .build();
        ImageLoaderConfiguration loaderConfiguration = new ImageLoaderConfiguration.Builder(this)
                .defaultDisplayImageOptions(options)
                .build();
        ImageLoader imageLoader = ImageLoader.getInstance();
        imageLoader.init(loaderConfiguration);
    }
}

5asynctask创建接口

package com.example.moni.asynctast;

import android.os.AsyncTask;

import com.example.moni.http.Http;
public class MyAsuncTask extends AsyncTask<String,Void,String> {
    @Override
    protected String doInBackground(String... strings) {
        return Http.requestHttpGet(strings[0]);
    }

    @Override
    protected void onPostExecute(String s) {
        super.onPostExecute(s);
        callbacks.getData(s);
    }
    public interface Callbacks{
        String getData(String string);
    }
    private Callbacks callbacks;

    public void setCallbacks(Callbacks callbacks) {
        this.callbacks = callbacks;
    }
}

6GridView接口实现以及解析

package com.example.moni.frag;

import android.os.Bundle;
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.GridView;
import android.widget.Toast;

import com.example.moni.R;
import com.example.moni.adapter.MyAdapter;
import com.example.moni.asynctast.MyAsuncTask;
import com.example.moni.bean.JsonBean;
import com.google.gson.Gson;

import java.util.List;

public class FragGrid extends Fragment implements MyAsuncTask.Callbacks {

    private GridView gridView;

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view=inflater.inflate(R.layout.fraggrid,container,false);
        gridView = view.findViewById(R.id.gridview);
        //请求数据
        MyAsuncTask task = new MyAsuncTask();
        task.setCallbacks(this);
        task.execute("http://api.expoon.com/AppNews/getNewsList/type/1/p/1");
        return view;
    }

    @Override
    public String getData(String string) {
        Gson gson = new Gson();
        JsonBean bean = gson.fromJson(string, JsonBean.class);
        List<JsonBean.DataBean> list = bean.getData();
        gridView.setAdapter(new MyAdapter(getActivity(),list));
        //Toast.makeText(getActivity(), ""+list.toString(), Toast.LENGTH_SHORT).show();
        return null;
    }
}

xlistview上拉加载下拉刷新以及图片和布局

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