具體步驟如下：

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1 布局文件中控件的設計

2 訪問遠程服務器的資源xml文件，該文件包含新聞的內容等信息

3 訪問到內容后把訪問內容顯示到頁面上

具體代碼如下：

1 MainActivity

package com.yuanlp.newsclient;

import android.graphics.Color;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.yuanlp.newsclient.bean.NewsBean;
import com.yuanlp.newsclient.utils.XMLToBean;
import com.yuanlp.newsclient.view.SmartImageView;

import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private static final int LOAD_ERROR =2 ;
    private static final int LOAD_SUCCESS =1 ;
    private ListView mLv_news;
    private LinearLayout mLoading;
    //new 一個Handler來做android的消息機制，處理子線程數據
    private Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            //不管加載成功失敗，進度條應該隱藏
            mLoading.setVisibility(View.INVISIBLE);
            switch (msg.what){
                case LOAD_ERROR:
                    Toast.makeText(MainActivity.this, "加載失敗", Toast.LENGTH_SHORT).show();
                    break;
                case LOAD_SUCCESS:
                    //顯示listView的內容
                    mLv_news.setAdapter(new MyNewsAdapter());
                    break;
            }
        }
    };
    private List mList;

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

        /**
         * 初始化獲取界面元素
         */
        initView();

        /**
         * 加載遠程資源到本地文件
         */
        loadMessage();

        //readMessage();
    }




    /**
     * 初始化界面
     */
    private void initView() {
        setContentView(R.layout.activity_main);
        mLv_news = (ListView) findViewById(R.id.lv_news);
        mLoading = (LinearLayout) findViewById(R.id.ll_loading);
        //打開客戶端后，設置ll_loading可見
        mLoading.setVisibility(View.VISIBLE);
    }

    /**
     * 加載遠程資源到本地
     */
    private void loadMessage() {
        NewsBean newsBean=null;

        //訪問網絡不能再主線程中進行，需要一個新線程
        new Thread(){
            @Override
            public void run() {

                try {
                    Thread.sleep(5000);
                    NewsBean newsBean=null;
                    URL url = new URL("http://192.168.1.107:8080/WebServer/news.xml");
                    HttpURLConnection conn= (HttpURLConnection) url.openConnection();
                    conn.setRequestMethod("GET");
                    int code = conn.getResponseCode();
                    if (code==200){
                        //獲取到資源
                        InputStream is = conn.getInputStream();
                        //調用utils方法，將xml文件轉為list類型返回
                        mList = XMLToBean.readStream(newsBean,is);

                        //利用android的循環消息機制，放到UI線程中執行結果
                        Message msg = Message.obtain();
                        msg.what=LOAD_SUCCESS;
                        handler.sendMessage(msg);

                    }else{
                        Message msg = Message.obtain();
                        msg.what=LOAD_ERROR;
                        handler.sendMessage(msg);
                    }

                } catch (Exception e) {
                    e.printStackTrace();
                    Message msg = Message.obtain();
                    msg.what=LOAD_ERROR;
                    handler.sendMessage(msg);
                }
            }
        }.start();
    }


    /**
     * 顯示listView中的數據
     */
    private class MyNewsAdapter extends BaseAdapter {
        @Override
        public int getCount() {
            return mList.size();
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            //布局打氣筒，把xml資源文件轉變為view     即加載另外的一個布局文件
            View view = View.inflate(MainActivity.this, R.layout.news, null);
            //獲取子布局文件中的各個控件
            SmartImageView img = (SmartImageView) view.findViewById(R.id.iv_img);
            TextView tv_title= (TextView) view.findViewById(R.id.tv_title);
            TextView tv_desc= (TextView) view.findViewById(R.id.tv_desc);
            TextView tv_type= (TextView) view.findViewById(R.id.tv_type);


            //獲取當前位置的對象
            NewsBean item = getItem(position);

            //設置圖片顯示
            img.showImgByPath(item.getImg());

            tv_title.setText(item.getTitle());
            tv_desc.setText(item.getDescription());

            String type=item.getType();
            if ("1".equals(type)){ //當類型為1時，表示有評論，而且顯示評論數
                tv_type.setText("評論:"+item.getComment());
                tv_type.setTextColor(Color.BLACK);
                tv_type.setBackgroundColor(Color.TRANSPARENT);
            }else if ("2".equals(type)){
                tv_type.setText("專題");
                tv_type.setBackgroundColor(Color.RED);
                tv_type.setTextColor(Color.WHITE);
            }else if ("3".equals(type)){
                tv_type.setText("直播");
                tv_type.setBackgroundColor(Color.RED);
                tv_type.setTextColor(Color.WHITE);
            }

            return view;
        }

        @Override
        public NewsBean getItem(int position) {
            return mList.get(position);
        }

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


    }
}

2 utils 中的將xml轉為list，可以參考前面幾天寫的博客，android解析xml。

package com.yuanlp.newsclient.utils;

import android.util.Xml;

import com.yuanlp.newsclient.bean.NewsBean;

import org.xmlpull.v1.XmlPullParser;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

/**
 * Created by 原立鵬 on 2017/6/21.
 */

public class XMLToBean {

    public static List readStream(NewsBean newsBean, InputStream is){
        List list=null;
        try {


            XmlPullParser xmlPullParser = Xml.newPullParser();
            xmlPullParser.setInput(is,"utf-8");


            int event=xmlPullParser.getEventType();
            while(event!=XmlPullParser.END_DOCUMENT){
                switch (event){  //根據eventType來區分，分為START_DOCUMENT,START_TAG,END_TAG,END_DOCUMENT
                    case XmlPullParser.START_DOCUMENT:
                        list=new ArrayList();
                        break;
                    case XmlPullParser.START_TAG:
                        String tagName=xmlPullParser.getName();  //獲取標簽名稱
                        if (tagName.equalsIgnoreCase("item")){
                            newsBean=new NewsBean();
                        }else if (tagName.equalsIgnoreCase("title")){
                            newsBean.setTitle(xmlPullParser.nextText());
                        }else if (tagName.equalsIgnoreCase("description")){
                            newsBean.setDescription(xmlPullParser.nextText());
                        }else if (tagName.equalsIgnoreCase("p_w_picpath")){
                            newsBean.setImg(xmlPullParser.nextText());
                        }else if (tagName.equalsIgnoreCase("type")){
                            newsBean.setType(xmlPullParser.nextText());
                        }else if (tagName.equalsIgnoreCase("comment")){
                            newsBean.setComment(xmlPullParser.nextText());
                        }
                        break;
                    case XmlPullParser.END_TAG:
                        if (xmlPullParser.getName().equalsIgnoreCase("item")&&newsBean!=null){
                            list.add(newsBean);
                            newsBean=null;

                        }

                }
                event=xmlPullParser.next();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        return list;
    }
}

3 獲取遠程新聞的方法

package com.yuanlp.newsclient.view;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.Nullable;
import android.util.AttributeSet;
import android.widget.ImageView;

import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

/**
 * Created by 原立鵬 on 2017/6/21.
 */

/**
 * 根據url地址去獲取遠程圖片，并顯示到新聞標題的左側
 */
public class SmartImageView extends ImageView {
    private Handler handler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            Bitmap bitmap= (Bitmap) msg.obj;
            setImageBitmap(bitmap);
        }
    };

    public SmartImageView(Context context) {
        super(context);
    }

    public SmartImageView(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
    }

    public SmartImageView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    public  void showImgByPath(final String imgURL){
        new Thread(){
            @Override
            public void run() {
                try {
                    URL url = new URL(imgURL);
                    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                    conn.setRequestMethod("GET");
                    int code = conn.getResponseCode();
                    if (code==200){
                        InputStream is = conn.getInputStream();
                        Bitmap bitmap = BitmapFactory.decodeStream(is);
                        Message msg = Message.obtain();
                        msg.what=1;
                        msg.obj=bitmap;
                        handler.sendMessage(msg);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }

            }
        }.start();
    }
}

4 activity_main.xml

5 news.xml