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1.android项目模拟成功的界面如下图：

2.创建一个JsonParse类用来解析json文件：

package cn.edu.bzu.myapplication.Tools;import com.google.gson.Gson;import com.google.gson.reflect.TypeToken;import java.lang.reflect.Type;import java.util.List;import cn.edu.bzu.myapplication.entity.NewsInfo;/** * Created by admin on 2017/5/18. */public class JsonParse {    public static List<NewsInfo> getNewInfo(String json){        Gson gson=new Gson();        Type listType=new TypeToken<List<NewsInfo>>(){        }.getType();        List<NewsInfo> newsInfos=gson.fromJson(json,listType);       return newsInfos;    }}

3.创建json文件的实体类：

package cn.edu.bzu.myapplication.entity;/** * Created by admin on 2017/5/17. */public class NewsInfo {    private String iconPath;    private String title;    private String description;    private int type;    private long comment;    public String getIconPath() {        return iconPath;    }    public void setIconPath(String iconPath) {        this.iconPath = iconPath;    }    public String getTitle() {        return title;    }    public void setTitle(String title) {        this.title = title;    }    public String getDescription() {        return description;    }    public void setDescription(String description) {        this.description = description;    }    public int getType() {        return type;    }    public void setType(int type) {        this.type = type;    }    public long getComment() {        return comment;    }    public void setComment(long comment) {        this.comment = comment;    }}

activity_main.xml：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context=".MainActivity"    android:orientation="vertical">    <FrameLayout        android:layout_width="match_parent"        android:layout_height="match_parent">        <LinearLayout            android:id="@+id/loading"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:gravity="center"            android:orientation="vertical"            android:visibility="invisible">            <ProgressBar                android:layout_width="wrap_content"                android:layout_height="wrap_content" />            <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="正在加载信息..." />        </LinearLayout>        <ListView            android:id="@+id/lv_news"            android:layout_width="match_parent"            android:layout_height="match_parent" />    </FrameLayout></LinearLayout>

item的布局文件：

<?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="65dp">    <com.loopj.android.image.SmartImageView        android:id="@+id/siv_icon"        android:layout_width="80dp"        android:layout_height="60dp"        android:scaleType="centerCrop"        android:src="@mipmap/ic_launcher"        android:layout_alignParentLeft="true"        android:layout_alignParentStart="true"></com.loopj.android.image.SmartImageView>    <TextView        android:id="@+id/tv_title"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginLeft="5dp"        android:layout_marginTop="10dp"        android:layout_toRightOf="@id/siv_icon"        android:ellipsize="end"        android:maxLength="20"        android:singleLine="true"        android:text="我是标题"        android:textColor="#000000"        android:textSize="18sp" />    <TextView        android:id="@+id/tv_description"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@id/tv_title"        android:layout_marginLeft="5dp"        android:layout_marginTop="5dp"        android:layout_toRightOf="@id/siv_icon"        android:ellipsize="end"        android:maxLength="16"        android:maxLines="1"        android:text="我是描述"        android:textColor="#99000000"        android:textSize="14sp" />    <TextView        android:id="@+id/tv_type"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentBottom="true"        android:layout_alignParentRight="true"        android:layout_marginBottom="5dp"        android:layout_marginRight="10dp"        android:text="评论"        android:textColor="#99000000"        android:textSize="12sp" /></RelativeLayout>

适配器代码：

package cn.edu.bzu.myapplication.adapter;/** * Created by admin on 2017/5/17. */import android.content.Context;import android.graphics.Color;import android.support.annotation.NonNull;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ArrayAdapter;import android.widget.TextView;import com.loopj.android.image.SmartImageView;import java.util.List;import cn.edu.bzu.myapplication.R;import cn.edu.bzu.myapplication.entity.NewsInfo;public class NewAdapter extends ArrayAdapter<NewsInfo>{private  int resourceID;    public NewAdapter(Context context, int resource, List<NewsInfo> objects) {        super(context, resource, objects);        resourceID=resource;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        NewsInfo fruit=getItem(position);        View view;        ViewHolder viewHolder;        if(convertView==null){             view=LayoutInflater.from(getContext()).inflate(resourceID,null);             viewHolder=new ViewHolder();            viewHolder.siv=(SmartImageView)view.findViewById(R.id.siv_icon);            viewHolder.tv_title=(TextView)view.findViewById(R.id.tv_title);            viewHolder.tv_description=(TextView)view.findViewById(R.id.tv_description);            viewHolder.tv_type=(TextView)view.findViewById(R.id.tv_type);            view.setTag(viewHolder);        }else{            view=convertView;            viewHolder= (ViewHolder) view.getTag();        }        viewHolder.siv.setImageUrl(fruit.getIconPath(),R.drawable.a,R.drawable.ic_launcher);        viewHolder.tv_title.setText(fruit.getTitle());        viewHolder.tv_description.setText(fruit.getDescription());        int type=fruit.getType();        switch (type){            case 1:                viewHolder.tv_type.setText("评论："+fruit.getComment());                viewHolder.tv_type.setTextColor(Color.BLUE);                break;            case 2:                viewHolder.tv_type.setText("专题");                viewHolder.tv_type.setTextColor(Color.BLACK);                break;            case 3:                viewHolder.tv_type.setText("LIVE");                viewHolder.tv_type.setTextColor(Color.RED);                break;        }        return view;    }    class ViewHolder{        SmartImageView siv;        TextView tv_title;        TextView tv_description;        TextView tv_type;    }}

MainActivity实现代码：

package cn.edu.bzu.myapplication;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.LinearLayout;import android.widget.ListView;import android.widget.Toast;import com.loopj.android.http.AsyncHttpClient;import com.loopj.android.http.AsyncHttpResponseHandler;import java.io.UnsupportedEncodingException;import java.util.ArrayList;import java.util.List;import cn.edu.bzu.myapplication.Tools.JsonParse;import cn.edu.bzu.myapplication.adapter.NewAdapter;import cn.edu.bzu.myapplication.entity.NewsInfo;import cn.edu.bzu.myapplication.model.Fruit;public class MainActivity extends AppCompatActivity {    private ListView Iv_news;    private NewAdapter newAdapter;    private List<NewsInfo> newInfos;    private LinearLayout loading;    private JsonParse jsonParse;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        Iv_news= (ListView) findViewById(R.id.lv_news);        newAdapter =new NewAdapter(this,R.layout.news_item,newInfos);        loading= (LinearLayout) findViewById(R.id.loading);        prepareData();    }    private void prepareData() {        //fruitList=new ArrayList<>();        //Fruit apple=new Fruit("Apple",R.drawable.apple_pic);       // fruitList.add(apple);        AsyncHttpClient asyncHttpClient=new AsyncHttpClient();        asyncHttpClient.get(getString(R.string.serverurl), new AsyncHttpResponseHandler() {            @Override            public void onSuccess(int i, cz.msebera.android.httpclient.Header[] headers, byte[] bytes) {                try {                    String json=new String(bytes,"utf-8");                    newInfos=jsonParse.getNewInfo(json);                    if(newInfos==null){                        Toast.makeText(MainActivity.this,"解析失败",Toast.LENGTH_SHORT).show();                    }                    else {                        loading.setVisibility(View.INVISIBLE);                        Iv_news.setAdapter(newAdapter);                    }                } catch (UnsupportedEncodingException e) {                    e.printStackTrace();                }            }            @Override            public void onFailure(int i, cz.msebera.android.httpclient.Header[] headers, byte[] bytes, Throwable throwable) {                Toast.makeText(MainActivity.this,"请求失败",Toast.LENGTH_SHORT).show();            }        });    }}

在values文件加下的String.xml文件中添加：

<string name="serverurl">http://172.16.26.58:8080/newInfo.xml</string>

最后添加网络访问权限