1 所需的web项目结构如下：
2 new.xml的文件内容如下：
<?xml version="1.0" encoding="UTF-8" ?>
<news>
<new>
<title>3Q大战宣判: 腾讯获赔500万</title>
<detail>最高法驳回360上诉, 维持一审宣判.</detail>
<comment>6427</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/1.jpg</image>
</new>
<new>
<title>今日之声:北大雕塑被戴口罩</title>
<detail>市民: 因雾霾起诉环保局; 公务员谈"紧日子": 坚决不出去.</detail>
<comment>681</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/2.jpg</image>
</new>
<new>
<title>奥巴马见达赖是装蒜</title>
<detail>外文局: 国际民众认可中国大国地位;法院: "流量清零"未侵权.</detail>
<comment>1359</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/3.jpg</image>
</new>
<new>
<title>轻松一刻: 我要沉迷学习不自拔</title>
<detail>放假时我醒了不代表我起床了, 如今我起床了不代表我醒了!</detail>
<comment>10116</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/4.jpg</image>
</new>
<new>
<title>男女那些事儿</title>
<detail>"妈, 我在东莞被抓, 要2万保释金, 快汇钱到xxx!"</detail>
<comment>10339</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/5.jpg</image>
</new>
<new>
<title>3Q大战宣判: 腾讯获赔500万</title>
<detail>最高法驳回360上诉, 维持一审宣判.</detail>
<comment>6427</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/1.jpg</image>
</new>
<new>
<title>今日之声:北大雕塑被戴口罩</title>
<detail>市民: 因雾霾起诉环保局; 公务员谈"紧日子": 坚决不出去.</detail>
<comment>681</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/2.jpg</image>
</new>
<new>
<title>奥巴马见达赖是装蒜</title>
<detail>外文局: 国际民众认可中国大国地位;法院: "流量清零"未侵权.</detail>
<comment>1359</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/3.jpg</image>
</new>
<new>
<title>轻松一刻: 我要沉迷学习不自拔</title>
<detail>放假时我醒了不代表我起床了, 如今我起床了不代表我醒了!</detail>
<comment>10116</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/4.jpg</image>
</new>
<new>
<title>男女那些事儿</title>
<detail>"妈, 我在东莞被抓, 要2万保释金, 快汇钱到xxx!"</detail>
<comment>10339</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/5.jpg</image>
</new>
<new>
<title>3Q大战宣判: 腾讯获赔500万</title>
<detail>最高法驳回360上诉, 维持一审宣判.</detail>
<comment>6427</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/1.jpg</image>
</new>
<new>
<title>今日之声:北大雕塑被戴口罩</title>
<detail>市民: 因雾霾起诉环保局; 公务员谈"紧日子": 坚决不出去.</detail>
<comment>681</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/2.jpg</image>
</new>
<new>
<title>奥巴马见达赖是装蒜</title>
<detail>外文局: 国际民众认可中国大国地位;法院: "流量清零"未侵权.</detail>
<comment>1359</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/3.jpg</image>
</new>
<new>
<title>轻松一刻: 我要沉迷学习不自拔</title>
<detail>放假时我醒了不代表我起床了, 如今我起床了不代表我醒了!</detail>
<comment>10116</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/4.jpg</image>
</new>
<new>
<title>男女那些事儿</title>
<detail>"妈, 我在东莞被抓, 要2万保释金, 快汇钱到xxx!"</detail>
<comment>10339</comment>
<image>http://10.0.2.2:8080/NetEaseServer/images/5.jpg</image>
</new>
</news>
3 将上面这个web项目部署在云服务器上（这里为安全起见，我略去部分地址），访问地址为：http://XXX:8080/NetEaseServer/new.xml
4 下面开始编写android app项目，最终的项目截图如下：
5 编写Android的清单文件，如下：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.itheima28.neteasedemo"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.itheima28.neteasedemo.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
6 编写布局文件activity_main.xml，内容如下：
<RelativeLayout 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" >
<ListView
android:id="@+id/lv_news"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
7 编写布局文件listview_item.xml,内容如下：
<?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="wrap_content"
android:padding="5dip" >
<com.loopj.android.image.SmartImageView
android:id="@+id/siv_listview_item_icon"
android:layout_width="100dip"
android:layout_height="60dip"
android:src="@drawable/a" />
<TextView
android:id="@+id/tv_listview_item_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="3dip"
android:layout_toRightOf="@id/siv_listview_item_icon"
android:singleLine="true"
android:text="3Q大战宣判: 腾讯获赔500万"
android:textColor="@android:color/black"
android:textSize="17sp" />
<TextView
android:id="@+id/tv_listview_item_detail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@id/tv_listview_item_title"
android:layout_below="@id/tv_listview_item_title"
android:layout_marginTop="3dip"
android:text="啊发送旅客登机挥发速度发送旅客登机"
android:textColor="@android:color/darker_gray"
android:textSize="14sp" />
<TextView
android:id="@+id/tv_listview_item_comment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="668跟帖"
android:textColor="#FF0000"
android:textSize="12sp" />
</RelativeLayout>
8 用到的github上的SmartView，代码如下：
package com.loopj.android.image;
import android.content.Context;
import android.graphics.Bitmap;
public class BitmapImage implements SmartImage {
private Bitmap bitmap;
public BitmapImage(Bitmap bitmap) {
this.bitmap = bitmap;
}
public Bitmap getBitmap(Context context) {
return bitmap;
}
}
package com.loopj.android.image;
import java.io.InputStream;
import android.content.ContentUris;
import android.content.ContentResolver;
import android.content.Context;
import android.provider.ContactsContract;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
public class ContactImage implements SmartImage {
private long contactId;
public ContactImage(long contactId) {
this.contactId = contactId;
}
public Bitmap getBitmap(Context context) {
Bitmap bitmap = null;
ContentResolver contentResolver = context.getContentResolver();
try {
Uri uri = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, contactId);
InputStream input = ContactsContract.Contacts.openContactPhotoInputStream(contentResolver, uri);
if(input != null) {
bitmap = BitmapFactory.decodeStream(input);
}
} catch(Exception e) {
e.printStackTrace();
}
return bitmap;
}
}
package com.loopj.android.image;
import android.content.Context;
import android.graphics.Bitmap;
public interface SmartImage {
public Bitmap getBitmap(Context context);
}
package com.loopj.android.image;
import android.content.Context;
import android.graphics.Bitmap;
import android.os.Handler;
import android.os.Message;
public class SmartImageTask implements Runnable {
private static final int BITMAP_READY = 0;
private boolean cancelled = false;
private OnCompleteHandler onCompleteHandler;
private SmartImage image;
private Context context;
public static class OnCompleteHandler extends Handler {
@Override
public void handleMessage(Message msg) {
Bitmap bitmap = (Bitmap)msg.obj;
onComplete(bitmap);
}
public void onComplete(Bitmap bitmap){};
}
public abstract static class OnCompleteListener {
public abstract void onComplete();
}
public SmartImageTask(Context context, SmartImage image) {
this.image = image;
this.context = context;
}
@Override
public void run() {
if(image != null) {
complete(image.getBitmap(context));
context = null;
}
}
public void setOnCompleteHandler(OnCompleteHandler handler){
this.onCompleteHandler = handler;
}
public void cancel() {
cancelled = true;
}
public void complete(Bitmap bitmap){
if(onCompleteHandler != null && !cancelled) {
onCompleteHandler.sendMessage(onCompleteHandler.obtainMessage(BITMAP_READY, bitmap));
}
}
}
package com.loopj.android.image;
import android.content.Context;
import android.graphics.Bitmap;
import android.util.AttributeSet;
import android.widget.ImageView;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class SmartImageView extends ImageView {
private static final int LOADING_THREADS = 4;
private static ExecutorService threadPool = Executors.newFixedThreadPool(LOADING_THREADS);
private SmartImageTask currentTask;
public SmartImageView(Context context) {
super(context);
}
public SmartImageView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public SmartImageView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
// Helpers to set image by URL
public void setImageUrl(String url) {
setImage(new WebImage(url));
}
public void setImageUrl(String url, SmartImageTask.OnCompleteListener completeListener) {
setImage(new WebImage(url), completeListener);
}
public void setImageUrl(String url, final Integer fallbackResource) {
setImage(new WebImage(url), fallbackResource);
}
public void setImageUrl(String url, final Integer fallbackResource, SmartImageTask.OnCompleteListener completeListener) {
setImage(new WebImage(url), fallbackResource, completeListener);
}
public void setImageUrl(String url, final Integer fallbackResource, final Integer loadingResource) {
setImage(new WebImage(url), fallbackResource, loadingResource);
}
public void setImageUrl(String url, final Integer fallbackResource, final Integer loadingResource, SmartImageTask.OnCompleteListener completeListener) {
setImage(new WebImage(url), fallbackResource, loadingResource, completeListener);
}
// Helpers to set image by contact address book id
public void setImageContact(long contactId) {
setImage(new ContactImage(contactId));
}
public void setImageContact(long contactId, final Integer fallbackResource) {
setImage(new ContactImage(contactId), fallbackResource);
}
public void setImageContact(long contactId, final Integer fallbackResource, final Integer loadingResource) {
setImage(new ContactImage(contactId), fallbackResource, fallbackResource);
}
// Set image using SmartImage object
public void setImage(final SmartImage image) {
setImage(image, null, null, null);
}
public void setImage(final SmartImage image, final SmartImageTask.OnCompleteListener completeListener) {
setImage(image, null, null, completeListener);
}
public void setImage(final SmartImage image, final Integer fallbackResource) {
setImage(image, fallbackResource, fallbackResource, null);
}
public void setImage(final SmartImage image, final Integer fallbackResource, SmartImageTask.OnCompleteListener completeListener) {
setImage(image, fallbackResource, fallbackResource, completeListener);
}
public void setImage(final SmartImage image, final Integer fallbackResource, final Integer loadingResource) {
setImage(image, fallbackResource, loadingResource, null);
}
public void setImage(final SmartImage image, final Integer fallbackResource, final Integer loadingResource, final SmartImageTask.OnCompleteListener completeListener) {
// Set a loading resource
if(loadingResource != null){
setImageResource(loadingResource);
}
// Cancel any existing tasks for this image view
if(currentTask != null) {
currentTask.cancel();
currentTask = null;
}
// Set up the new task
currentTask = new SmartImageTask(getContext(), image);
currentTask.setOnCompleteHandler(new SmartImageTask.OnCompleteHandler() {
@Override
public void onComplete(Bitmap bitmap) {
if(bitmap != null) {
setImageBitmap(bitmap);
} else {
// Set fallback resource
if(fallbackResource != null) {
setImageResource(fallbackResource);
}
}
if(completeListener != null){
completeListener.onComplete();
}
}
});
// Run the task in a threadpool
threadPool.execute(currentTask);
}
public static void cancelAllTasks() {
threadPool.shutdownNow();
threadPool = Executors.newFixedThreadPool(LOADING_THREADS);
}
}
package com.loopj.android.image;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
public class WebImage implements SmartImage {
private static final int CONNECT_TIMEOUT = 5000;
private static final int READ_TIMEOUT = 10000;
private static WebImageCache webImageCache;
private String url;
public WebImage(String url) {
this.url = url;
}
public Bitmap getBitmap(Context context) {
// Don't leak context
if(webImageCache == null) {
webImageCache = new WebImageCache(context);
}
// Try getting bitmap from cache first
Bitmap bitmap = null;
if(url != null) {
bitmap = webImageCache.get(url);
if(bitmap == null) {
bitmap = getBitmapFromUrl(url);
if(bitmap != null){
webImageCache.put(url, bitmap);
}
}
}
return bitmap;
}
private Bitmap getBitmapFromUrl(String url) {
Bitmap bitmap = null;
try {
URLConnection conn = new URL(url).openConnection();
conn.setConnectTimeout(CONNECT_TIMEOUT);
conn.setReadTimeout(READ_TIMEOUT);
bitmap = BitmapFactory.decodeStream((InputStream) conn.getContent());
} catch(Exception e) {
e.printStackTrace();
}
return bitmap;
}
public static void removeFromCache(String url) {
if(webImageCache != null) {
webImageCache.remove(url);
}
}
}
package com.loopj.android.image;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.lang.ref.SoftReference;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.BitmapFactory;
public class WebImageCache {
private static final String DISK_CACHE_PATH = "/web_image_cache/";
private ConcurrentHashMap<String, SoftReference<Bitmap>> memoryCache;
private String diskCachePath;
private boolean diskCacheEnabled = false;
private ExecutorService writeThread;
public WebImageCache(Context context) {
// Set up in-memory cache store
memoryCache = new ConcurrentHashMap<String, SoftReference<Bitmap>>();
// Set up disk cache store
Context appContext = context.getApplicationContext();
diskCachePath = appContext.getCacheDir().getAbsolutePath() + DISK_CACHE_PATH;
File outFile = new File(diskCachePath);
outFile.mkdirs();
diskCacheEnabled = outFile.exists();
// Set up threadpool for image fetching tasks
writeThread = Executors.newSingleThreadExecutor();
}
public Bitmap get(final String url) {
Bitmap bitmap = null;
// Check for image in memory
bitmap = getBitmapFromMemory(url);
// Check for image on disk cache
if(bitmap == null) {
bitmap = getBitmapFromDisk(url);
// Write bitmap back into memory cache
if(bitmap != null) {
cacheBitmapToMemory(url, bitmap);
}
}
return bitmap;
}
public void put(String url, Bitmap bitmap) {
cacheBitmapToMemory(url, bitmap);
cacheBitmapToDisk(url, bitmap);
}
public void remove(String url) {
if(url == null){
return;
}
// Remove from memory cache
memoryCache.remove(getCacheKey(url));
// Remove from file cache
File f = new File(diskCachePath, getCacheKey(url));
if(f.exists() && f.isFile()) {
f.delete();
}
}
public void clear() {
// Remove everything from memory cache
memoryCache.clear();
// Remove everything from file cache
File cachedFileDir = new File(diskCachePath);
if(cachedFileDir.exists() && cachedFileDir.isDirectory()) {
File[] cachedFiles = cachedFileDir.listFiles();
for(File f : cachedFiles) {
if(f.exists() && f.isFile()) {
f.delete();
}
}
}
}
private void cacheBitmapToMemory(final String url, final Bitmap bitmap) {
memoryCache.put(getCacheKey(url), new SoftReference<Bitmap>(bitmap));
}
private void cacheBitmapToDisk(final String url, final Bitmap bitmap) {
writeThread.execute(new Runnable() {
@Override
public void run() {
if(diskCacheEnabled) {
BufferedOutputStream ostream = null;
try {
ostream = new BufferedOutputStream(new FileOutputStream(new File(diskCachePath, getCacheKey(url))), 2*1024);
bitmap.compress(CompressFormat.PNG, 100, ostream);
} catch (FileNotFoundException e) {
e.printStackTrace();
} finally {
try {
if(ostream != null) {
ostream.flush();
ostream.close();
}
} catch (IOException e) {}
}
}
}
});
}
private Bitmap getBitmapFromMemory(String url) {
Bitmap bitmap = null;
SoftReference<Bitmap> softRef = memoryCache.get(getCacheKey(url));
if(softRef != null){
bitmap = softRef.get();
}
return bitmap;
}
private Bitmap getBitmapFromDisk(String url) {
Bitmap bitmap = null;
if(diskCacheEnabled){
String filePath = getFilePath(url);
File file = new File(filePath);
if(file.exists()) {
bitmap = BitmapFactory.decodeFile(filePath);
}
}
return bitmap;
}
private String getFilePath(String url) {
return diskCachePath + getCacheKey(url);
}
private String getCacheKey(String url) {
if(url == null){
throw new RuntimeException("Null url passed in");
} else {
return url.replaceAll("[.:/,%?&=]", "+").replaceAll("[+]+", "+");
}
}
}
9 需要的实体NewInfo.java
package com.itheima28.neteasedemo.domain;
/**
* @author andong
* 新闻信息实体类
*/
public class NewInfo {
private String title; // 标题
private String detail; // 详细
private Integer comment; // 跟帖数量
private String imageUrl; // 图片连接
@Override
public String toString() {
return "NewInfo [title=" + title + ", detail=" + detail + ", comment="
+ comment + ", imageUrl=" + imageUrl + "]";
}
public NewInfo(String title, String detail, Integer comment, String imageUrl) {
super();
this.title = title;
this.detail = detail;
this.comment = comment;
this.imageUrl = imageUrl;
}
public NewInfo() {
super();
// TODO Auto-generated constructor stub
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getDetail() {
return detail;
}
public void setDetail(String detail) {
this.detail = detail;
}
public Integer getComment() {
return comment;
}
public void setComment(Integer comment) {
this.comment = comment;
}
public String getImageUrl() {
return imageUrl;
}
public void setImageUrl(String imageUrl) {
this.imageUrl = imageUrl;
}
}
10 Activity中的代码如下：
package com.itheima28.neteasedemo;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.xmlpull.v1.XmlPullParser;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.util.Xml;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.itheima28.neteasedemo.domain.NewInfo;
import com.loopj.android.image.SmartImageView;
public class MainActivity extends Activity {
private static final String TAG = "MainActivity";
private final int SUCCESS = 0;
private final int FAILED = 1;
private ListView lvNews;
private List<NewInfo> newInfoList;
private Handler handler = new Handler() {
/**
* 接收消息
*/
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case SUCCESS:// 访问成功, 有数据
// 给Listview列表绑定数据
newInfoList = (List<NewInfo>) msg.obj;
MyAdapter adapter = new MyAdapter();
lvNews.setAdapter(adapter);
break;
case FAILED: // 无数据
Toast.makeText(MainActivity.this, "当前网络崩溃了.", 0).show();
break;
default:
break;
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
init();
}
private void init() {
lvNews = (ListView) findViewById(R.id.lv_news);
// 抓取新闻数据
new Thread(new Runnable() {
@Override
public void run() {
// 获得新闻集合
List<NewInfo> newInfoList = getNewsFromInternet();
Message msg = new Message();
if(newInfoList != null) {
msg.what = SUCCESS;
msg.obj = newInfoList;
} else {
msg.what = FAILED;
}
handler.sendMessage(msg);
}
}).start();
}
/**
* 返回新闻信息
*/
private List<NewInfo> getNewsFromInternet() {
HttpClient client = null;
try {
// 定义一个客户端
client = new DefaultHttpClient();
// 定义get方法
HttpGet get = new HttpGet("http://114.215.142.191:8080/NetEaseServer/new.xml");
// 执行请求
HttpResponse response = client.execute(get);
int statusCode = response.getStatusLine().getStatusCode();
if(statusCode == 200) {
InputStream is = response.getEntity().getContent();
List<NewInfo> newInfoList = getNewListFromInputStream(is);
return newInfoList;
} else {
Log.i(TAG, "访问失败: " + statusCode);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if(client != null) {
client.getConnectionManager().shutdown(); // 关闭和释放资源
}
}
return null;
}
/**
* 从流中解析新闻集合
* @param is
* @return
*/
private List<NewInfo> getNewListFromInputStream(InputStream is) throws Exception {
XmlPullParser parser = Xml.newPullParser(); // 创建一个pull解析器
parser.setInput(is, "utf-8"); // 指定解析流, 和编码
int eventType = parser.getEventType();
List<NewInfo> newInfoList = null;
NewInfo newInfo = null;
while(eventType != XmlPullParser.END_DOCUMENT) { // 如果没有到结尾处, 继续循环
String tagName = parser.getName(); // 节点名称
switch (eventType) {
case XmlPullParser.START_TAG: // <news>
if("news".equals(tagName)) {
newInfoList = new ArrayList<NewInfo>();
} else if("new".equals(tagName)) {
newInfo = new NewInfo();
} else if("title".equals(tagName)) {
newInfo.setTitle(parser.nextText());
} else if("detail".equals(tagName)) {
newInfo.setDetail(parser.nextText());
} else if("comment".equals(tagName)) {
newInfo.setComment(Integer.valueOf(parser.nextText()));
} else if("image".equals(tagName)) {
newInfo.setImageUrl(parser.nextText());
}
break;
case XmlPullParser.END_TAG: // </news>
if("new".equals(tagName)) {
newInfoList.add(newInfo);
}
break;
default:
break;
}
eventType = parser.next(); // 取下一个事件类型
}
return newInfoList;
}
class MyAdapter extends BaseAdapter {
/**
* 返回列表的总长度
*/
@Override
public int getCount() {
return newInfoList.size();
}
/**
* 返回一个列表的子条目的布局
*/
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = null;
if(convertView == null) {
LayoutInflater inflater = getLayoutInflater();
view = inflater.inflate(R.layout.listview_item, null);
} else {
view = convertView;
}
// 重新赋值, 不会产生缓存对象中原有数据保留的现象
SmartImageView sivIcon = (SmartImageView) view.findViewById(R.id.siv_listview_item_icon);
TextView tvTitle = (TextView) view.findViewById(R.id.tv_listview_item_title);
TextView tvDetail = (TextView) view.findViewById(R.id.tv_listview_item_detail);
TextView tvComment = (TextView) view.findViewById(R.id.tv_listview_item_comment);
NewInfo newInfo = newInfoList.get(position);
sivIcon.setImageUrl(newInfo.getImageUrl()); // 设置图片
tvTitle.setText(newInfo.getTitle());
tvDetail.setText(newInfo.getDetail());
tvComment.setText(newInfo.getComment() + "跟帖");
return view;
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
}
}
至此，代码完成，相应的资源图片可以自己找图片替代。