Android的ListView分页功能(上滑加载更多)
Android的ListView分页(上滑加载更多) ListView 分页的实现
首先要定义一个footer.xml作为进度条和提示加载中的底部布局，代码如下：
<LinearLayout
android:id="@+id/load_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal"
android:paddingBottom="10dip"
android:paddingTop="10dip"
tools:ignore="UselessParent" >
<ProgressBar
style="?android:attr/progressBarStyleLargeInverse"
android:layout_width="30dp"
android:layout_height="30dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="正在加载......"
android:textSize="16sp"
tools:ignore="HardcodedText" />
</LinearLayout>
这样的显示效果就是这样的：
然后自定义一个LoadListView，继承自ListView，实现其三个构造方法：
public LoadListView(Context context) {
super(context);
initView(context);
}
public LoadListView(Context context, AttributeSet attrs) {
super(context, attrs);
initView(context);
}
public LoadListView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initView(context);
}
其中initView()是通过inflater初始化布局的，代码：
private void initView(Context context){
LayoutInflater inflater = LayoutInflater.from(context);
footer = inflater.inflate(R.layout.footer, null);
footer.findViewById(R.id.load_layout).setVisibility(GONE);
this.addFooterView(footer);
this.setOnScrollListener(this);
}
然后，实现实现它的滑动事件接口，(详见代码，这里只说过程)，目的是为了监听ListView上滑到底部的时候，显示那个【加载更多...】提示信息，然后实现加载更多的函数运行，达到加载出更多数据。
那么问题来了，加在了更多数据是重新设置数据适配器吗？答案当然是不可以重新设置，这里我们首先判断adapter是否为空，如果是空的，就setAdaper()，如果不是，其实就是加载更多以后，我们不去重新设置，而是调用this.notifyDataSetChanged(); //当有数据变化的时候，ListView会自动刷新界面。这样很好的保证了数据不会重新设置，效果还不错。
if(adapter == null){
adapter = new FenleiAdapter(FenleiActivity.this, newsBeans);
mListView.setAdapter(adapter);
}else {
adapter.onDateChange(newsBeans);
}
public void onDateChange(List<FenleiBean> mList) {
// TODO Auto-generated method stub
this.mList = mList;
this.notifyDataSetChanged(); //当有数据变化的时候，自动刷新界面
}
继续，这个时候我们会遇到一个问题，就是在自定义类LoadListView中，怎么去调用MainActivity中的方法，答案是接口回调，大概的意思就是在LoadListView中定义一个接口，然后去MainActivity具体实现这个接口，调用的时候，通过ListView变量来调用，具体我也只是大致明白这个意思，如果不明白可以再百度一下。
当ListView通过findViewById()找到控件id的时候，不要忘了将这个接口设置给ListView，代码是mListView.setInterface(this);
最后的最后要在加载完数据之后，去把提示消息设置为隐藏，这样，整个就大功告成了！！！
最后的效果如图：
[上滑效果] [加载更多以后的效果]
LoadListView.java源码（具体还要根据你的项目去写）
package com.tdyl.consult.fenlei;
import com.tdyl.consult.R;
import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.ListView;
public class LoadListView extends ListView implements OnScrollListener {
View footer;
int totalItemCount;
int lastVisibleItem;
boolean isLoading;
ILoadListener2 iListener2;
public LoadListView(Context context) {
super(context);
initView(context);
}
public LoadListView(Context context, AttributeSet attrs) {
super(context, attrs);
initView(context);
}
public LoadListView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initView(context);
}
private void initView(Context context){
LayoutInflater inflater = LayoutInflater.from(context);
footer = inflater.inflate(R.layout.footer, null);
footer.findViewById(R.id.load_layout).setVisibility(GONE);
this.addFooterView(footer);
this.setOnScrollListener(this);
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
this.lastVisibleItem = firstVisibleItem + visibleItemCount;
this.totalItemCount = totalItemCount;
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollStatus) {
if(totalItemCount == lastVisibleItem
&& scrollStatus == SCROLL_STATE_IDLE){
if(!isLoading){
isLoading = true;
footer.findViewById(R.id.load_layout).setVisibility(VISIBLE);
//加载更多数据
iListener2.onLoad();
}
}
}
public void loadComplete(){
isLoading = false;
footer.findViewById(R.id.load_layout).setVisibility(GONE);
}
public void setInterface(ILoadListener2 iListener2){
this.iListener2 = iListener2;
}
public interface ILoadListener2{
public void onLoad();
}
}
package com.tdyl.consult.fenlei;
import com.tdyl.consult.R;
import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.ListView;
public class LoadListView extends ListView implements OnScrollListener {
View footer;
int totalItemCount;
int lastVisibleItem;
boolean isLoading;
ILoadListener2 iListener2;
public LoadListView(Context context) {
super(context);
initView(context);
}
public LoadListView(Context context, AttributeSet attrs) {
super(context, attrs);
initView(context);
}
public LoadListView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initView(context);
}
private void initView(Context context){
LayoutInflater inflater = LayoutInflater.from(context);
footer = inflater.inflate(R.layout.footer, null);
footer.findViewById(R.id.load_layout).setVisibility(GONE);
this.addFooterView(footer);
this.setOnScrollListener(this);
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
this.lastVisibleItem = firstVisibleItem + visibleItemCount;
this.totalItemCount = totalItemCount;
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollStatus) {
if(totalItemCount == lastVisibleItem
&& scrollStatus == SCROLL_STATE_IDLE){
if(!isLoading){
isLoading = true;
footer.findViewById(R.id.load_layout).setVisibility(VISIBLE);
//加载更多数据
iListener2.onLoad();
}
}
}
public void loadComplete(){
isLoading = false;
footer.findViewById(R.id.load_layout).setVisibility(GONE);
}
public void setInterface(ILoadListener2 iListener2){
this.iListener2 = iListener2;
}
public interface ILoadListener2{
public void onLoad();
}
}
MainActivity.java源码（我这里叫FenleiActivity.java，道理是一样的）
package com.tdyl.consult.fenlei;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.SoapFault;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import org.xmlpull.v1.XmlPullParserException;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.TextView;
import com.tdyl.consult.R;
import com.tdyl.consult.fenlei.LoadListView.ILoadListener2;
import com.tdyl.consult.otochat.ChatOtoActivity;
public class FenleiActivity extends Activity implements ILoadListener2 {
private LoadListView mListView;
private String user_fenlei = "";
private TextView title_name;
int number = 10;
FenleiAdapter adapter = null;
ArrayList <HashMap<String,Object>> list=new ArrayList<HashMap<String,Object>>(); //用来存放用户信息
HashMap<String, Object> map = new HashMap<String, Object>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_fenlei);
title_name = (TextView) findViewById(R.id.id_top_fenlei);
//注意页面文件要改为 com.example.administrator.listviewdividepage.LoadListView
mListView = (LoadListView) findViewById(R.id.lv_main);
mListView.setInterface(this);
Intent intent = getIntent();
user_fenlei = intent.getStringExtra("user_fenlei");
//-----------------------------------------------------------------------------
title_name.setText(user_fenlei+"专家");
new NewsAsynkTask().execute(number);
}
/**
* 将url对应的json格式数据转化为我们缩封装的NewsBean对象
* @param url
* @return
*/
private List<FenleiBean> getJsonData(int number){
List<FenleiBean> newsBeanList = new ArrayList<FenleiBean>();
//-----------------------------------------------------------------------------
searchTop10(number);
FenleiBean newsBean;
if(list.size() == 0)
{
new AlertDialog.Builder(this)
.setIcon(R.drawable.icon_menu)
.setTitle("温馨小提示")
.setMessage("没有要搜寻的专家分类")
.setPositiveButton("立刻返回搜索界面...", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
finish();
}
}).show();
}
for(int i=0;i<list.size();i++)
{
newsBean = new FenleiBean();
HashMap<String, Object> map1 = new HashMap<String, Object>();
map1 = list.get(i);
newsBean.newsIconUrl = map1.get("user_touxiangURL").toString();
newsBean.newTitle = map1.get("username").toString();
newsBean.newsContent = map1.get("user_qianming").toString();
newsBean.newsJifen = map1.get("user_jifen").toString();
newsBeanList.add(newsBean);
}
return newsBeanList;
}
/**
* 实现网络的异步访问
* @author Lenovo
*
*/
class NewsAsynkTask extends AsyncTask<Integer,Void, List<FenleiBean>>{
@Override
protected List<FenleiBean> doInBackground(Integer... params) {
return getJsonData(params[0]);
}
@Override
protected void onPostExecute(List<FenleiBean> newsBeans) {
// TODO Auto-generated method stub
super.onPostExecute(newsBeans);
if(adapter == null){
adapter = new FenleiAdapter(FenleiActivity.this, newsBeans);
mListView.setAdapter(adapter);
}else {
adapter.onDateChange(newsBeans);
}
mListView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
HashMap<String, Object> map1 = list.get(position);
Intent intent=new Intent();
intent.setClass(FenleiActivity.this,ChatOtoActivity.class);
intent.putExtra("username", map1.get("username").toString()); //用户名传到另一个界面
System.out.println("username"+map1.get("username").toString());
intent.putExtra("touxiang", map1.get("user_touxiangURL").toString()); //头像地址
//启动
startActivity(intent);
//Toast.makeText(FenleiActivity.this, "点击了"+newsBean.get("username"),Toast.LENGTH_SHORT).show();
}
});
}
}
/**
* 查询用户分类信息函数，放入list中，通过关键字key来取出
* */
public void searchTop10(int number)
{
//命名空间
String nameSpace = "http://wsServer.gnuhpc.org/";
//方法名字
String methodName = "SearchTeacherTop10";
// endPoint
String endPoint = "http://10.0.2.2:8080/wsServerHello";
//soapAction
String soapAction = "http://wsServer.gnuhpc.org/SearchTeacherTop10";
//指定调用方法命名空间和方法名字
SoapObject rpc = new SoapObject(nameSpace, methodName);
//调用方法时需要传入一个参数
//为了与web service保持一致，需要设置为arg0,因为web service会自动将其转化为arg0 arg1
rpc.addProperty("arg0",user_fenlei);
rpc.addProperty("arg1",number);
try {
//wsdl地址
HttpTransportSE transport = new HttpTransportSE(endPoint);
transport.debug= true;
//生成调用WebService方法的SOAP请求信息,并指定SOAP的版本
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.bodyOut = rpc;
//设置是否调用的是dotNet开发的WebService,服务器是.net的需要设置为true，java不用
envelope.dotNet = false;
envelope.setOutputSoapObject(rpc);
System.out.println("rpc:"+rpc);
System.out.println("enevlope:"+envelope);
System.out.println("---基本服务设置完毕，下面开始调用服务");
Log.v("---调用消息：", "开始call函数");
transport.call(soapAction, envelope);
Log.v("---函数结果：", ""+envelope.getResponse());
if(envelope.getResponse()!=null)
{
// 获取返回的数据
SoapObject object = (SoapObject) envelope.bodyIn;
System.out.println("---object:"+object);
System.out.println("---获取数据成功!");
System.out.println("object.toString():"+object.toString());
// 获取返回的结果 ,将结果存入到一个Map中
System.out.println(object.getProperty(0));
int count = object.getPropertyCount();
System.out.println("#######################"+count);
for(int index = 0; index < count; index = index + 5) //表中有五个关键字，循环条件+5
{
map = new HashMap<String, Object>();
map.put("username", object.getProperty(index).toString()); //用户名
map.put("user_fenlei", object.getProperty(index+1).toString()); //分类
map.put("user_qianming", object.getProperty(index+2).toString()); //签名
map.put("user_touxiangURL", object.getProperty(index+3).toString()); //在线状态
map.put("user_jifen", object.getProperty(index+4).toString()); //积分
list.add(map);
}
System.out.println("list的值为："+list);
}
else{
Log.v("----连接消息：", "连接失败");
}
} catch (SoapFault e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (XmlPullParserException e) {
e.printStackTrace();
}
}
@Override
public void onLoad() {
//获取更多数据
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
number=number+2; //每次多显示两条数据
new NewsAsynkTask().execute(number);
//通知listView显示更新,加载完毕
/**
* 设置默认显示为Listview最后一行
*/
mListView.setTranscriptMode(ListView.TRANSCRIPT_MODE_ALWAYS_SCROLL);
mListView.setStackFromBottom(true);
//通知listView加载完毕，底部布局消失
mListView.loadComplete();
}
}, 1000);
}
}
package com.tdyl.consult.fenlei;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.SoapFault;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import org.xmlpull.v1.XmlPullParserException;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.TextView;
import com.tdyl.consult.R;
import com.tdyl.consult.fenlei.LoadListView.ILoadListener2;
import com.tdyl.consult.otochat.ChatOtoActivity;
public class FenleiActivity extends Activity implements ILoadListener2 {
private LoadListView mListView;
private String user_fenlei = "";
private TextView title_name;
int number = 10;
FenleiAdapter adapter = null;
ArrayList <HashMap<String,Object>> list=new ArrayList<HashMap<String,Object>>(); //用来存放用户信息
HashMap<String, Object> map = new HashMap<String, Object>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_fenlei);
title_name = (TextView) findViewById(R.id.id_top_fenlei);
mListView = (LoadListView) findViewById(R.id.lv_main);
mListView.setInterface(this);
Intent intent = getIntent();
user_fenlei = intent.getStringExtra("user_fenlei");
//-----------------------------------------------------------------------------
title_name.setText(user_fenlei+"专家");
new NewsAsynkTask().execute(number);
}
/**
* 将url对应的json格式数据转化为我们缩封装的NewsBean对象
* @param url
* @return
*/
private List<FenleiBean> getJsonData(int number){
List<FenleiBean> newsBeanList = new ArrayList<FenleiBean>();
//-----------------------------------------------------------------------------
searchTop10(number);
FenleiBean newsBean;
if(list.size() == 0)
{
new AlertDialog.Builder(this)
.setIcon(R.drawable.icon_menu)
.setTitle("温馨小提示")
.setMessage("没有要搜寻的专家分类")
.setPositiveButton("立刻返回搜索界面...", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
finish();
}
}).show();
}
for(int i=0;i<list.size();i++)
{
newsBean = new FenleiBean();
HashMap<String, Object> map1 = new HashMap<String, Object>();
map1 = list.get(i);
newsBean.newsIconUrl = map1.get("user_touxiangURL").toString();
newsBean.newTitle = map1.get("username").toString();
newsBean.newsContent = map1.get("user_qianming").toString();
newsBean.newsJifen = map1.get("user_jifen").toString();
newsBeanList.add(newsBean);
}
return newsBeanList;
}
/**
* 实现网络的异步访问
* @author Lenovo
*
*/
class NewsAsynkTask extends AsyncTask<Integer,Void, List<FenleiBean>>{
@Override
protected List<FenleiBean> doInBackground(Integer... params) {
return getJsonData(params[0]);
}
@Override
protected void onPostExecute(List<FenleiBean> newsBeans) {
// TODO Auto-generated method stub
super.onPostExecute(newsBeans);
if(adapter == null){
adapter = new FenleiAdapter(FenleiActivity.this, newsBeans);
mListView.setAdapter(adapter);
}else {
adapter.onDateChange(newsBeans);
}
mListView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
HashMap<String, Object> map1 = list.get(position);
Intent intent=new Intent();
intent.setClass(FenleiActivity.this,ChatOtoActivity.class);
intent.putExtra("username", map1.get("username").toString()); //用户名传到另一个界面
System.out.println("username"+map1.get("username").toString());
intent.putExtra("touxiang", map1.get("user_touxiangURL").toString()); //头像地址
//启动
startActivity(intent);
//Toast.makeText(FenleiActivity.this, "点击了"+newsBean.get("username"),Toast.LENGTH_SHORT).show();
}
});
}
}
/**
* 查询用户分类信息函数，放入list中，通过关键字key来取出
* */
public void searchTop10(int number)
{
//命名空间
String nameSpace = "http://wsServer.gnuhpc.org/";
//方法名字
String methodName = "SearchTeacherTop10";
// endPoint
String endPoint = "http://10.0.2.2:8080/wsServerHello";
//soapAction
String soapAction = "http://wsServer.gnuhpc.org/SearchTeacherTop10";
//指定调用方法命名空间和方法名字
SoapObject rpc = new SoapObject(nameSpace, methodName);
//调用方法时需要传入一个参数
//为了与web service保持一致，需要设置为arg0,因为web service会自动将其转化为arg0 arg1
rpc.addProperty("arg0",user_fenlei);
rpc.addProperty("arg1",number);
try {
//wsdl地址
HttpTransportSE transport = new HttpTransportSE(endPoint);
transport.debug= true;
//生成调用WebService方法的SOAP请求信息,并指定SOAP的版本
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.bodyOut = rpc;
//设置是否调用的是dotNet开发的WebService,服务器是.net的需要设置为true，java不用
envelope.dotNet = false;
envelope.setOutputSoapObject(rpc);
System.out.println("rpc:"+rpc);
System.out.println("enevlope:"+envelope);
System.out.println("---基本服务设置完毕，下面开始调用服务");
Log.v("---调用消息：", "开始call函数");
transport.call(soapAction, envelope);
Log.v("---函数结果：", ""+envelope.getResponse());
if(envelope.getResponse()!=null)
{
// 获取返回的数据
SoapObject object = (SoapObject) envelope.bodyIn;
System.out.println("---object:"+object);
System.out.println("---获取数据成功!");
System.out.println("object.toString():"+object.toString());
// 获取返回的结果 ,将结果存入到一个Map中
System.out.println(object.getProperty(0));
int count = object.getPropertyCount();
System.out.println("#######################"+count);
for(int index = 0; index < count; index = index + 5) //表中有五个关键字，循环条件+5
{
map = new HashMap<String, Object>();
map.put("username", object.getProperty(index).toString()); //用户名
map.put("user_fenlei", object.getProperty(index+1).toString()); //分类
map.put("user_qianming", object.getProperty(index+2).toString()); //签名
map.put("user_touxiangURL", object.getProperty(index+3).toString()); //在线状态
map.put("user_jifen", object.getProperty(index+4).toString()); //积分
list.add(map);
}
System.out.println("list的值为："+list);
}
else{
Log.v("----连接消息：", "连接失败");
}
} catch (SoapFault e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (XmlPullParserException e) {
e.printStackTrace();
}
}
@Override
public void onLoad() {
//获取更多数据
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
number=number+2; //每次多显示两条数据
new NewsAsynkTask().execute(number);
//通知listView显示更新,加载完毕
/**
* 设置默认显示为Listview最后一行
*/
mListView.setTranscriptMode(ListView.TRANSCRIPT_MODE_ALWAYS_SCROLL);
mListView.setStackFromBottom(true);
//通知listView加载完毕，底部布局消失
mListView.loadComplete();
}
}, 1000);
}
}
感谢这门视频课程，汲取营养，继续努力......
第三个文件：对应的适配器
package com.tdyl.consult.jitang;
import java.util.List;
import android.content.Context;
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.tdyl.consult.R;
public class JitangAdapter extends BaseAdapter
{
private List<JitangBean> mList;
private LayoutInflater mInflater;
private JitangImageLoader mImageLoader;
public JitangAdapter(Context context,List<JitangBean> data)
{
mList = data;
mInflater = LayoutInflater.from(context);
mImageLoader = new JitangImageLoader();
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return mList.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return mList.get(position);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
ViewHoder viewHoder = null;
if(convertView ==null){
viewHoder = new ViewHoder();
convertView = mInflater.inflate(R.layout.item_jitang, null);
viewHoder.ivView = (ImageView) convertView.findViewById(R.id.iv_icon); //头像
viewHoder.tvTitle = (TextView) convertView.findViewById(R.id.tvTitle); //用户名
viewHoder.tvContent = (TextView) convertView.findViewById(R.id.tvContent); //鸡汤内容
viewHoder.tvShijian = (TextView) convertView.findViewById(R.id.tvTime); //发布时间
viewHoder.tvFenlei = (TextView) convertView.findViewById(R.id.tvFenlei); //标签
viewHoder.tvJifen = (TextView) convertView.findViewById(R.id.tv_jifen); //标签
convertView.setTag(viewHoder);
}
else
{
viewHoder = (ViewHoder) convertView.getTag();
}
viewHoder.ivView.setImageResource(R.drawable.ivicon_defult);
String url = mList.get(position).newsIconUrl;
viewHoder.ivView.setTag(url);
// new ImageLoader().showImageByThread(viewHoder.ivView,
// url);
mImageLoader.showImageByAsyncTask(viewHoder.ivView,
url);
viewHoder.tvTitle.setText("用户:[ "+mList.get(position).newTitle+" ]");
viewHoder.tvContent.setText(mList.get(position).newsContent);
viewHoder.tvShijian.setText(mList.get(position).newsShijian);
viewHoder.tvFenlei.setText("标签：[ "+mList.get(position).newsBiaoqian+"]");
viewHoder.tvJifen.setText("有 "+mList.get(position).newsJifen+" 人喜欢这碗鸡汤");
if (position % 2 == 0) {
/**
* 0xFF0000FF是int类型的数据
* 分组一下0x|FF|0000FF，0x是代表颜色整数的标记，ff是表示透明度，0000FF表示颜色
* 注意：这里0xFF0000FF必须是8个的颜色表示，不接受0000FF这种6个的颜色表示。
*/
convertView.setBackgroundColor(0x00);
} else {
convertView.setBackgroundColor(0xFFdfdfdf);
}
return convertView;
}
class ViewHoder{
public TextView tvTitle,tvContent,tvShijian,tvJifen,tvFenlei;
public ImageView ivView;
}
public void onDateChange(List<JitangBean> mList) {
// TODO Auto-generated method stub
this.mList = mList;
this.notifyDataSetChanged(); //当有数据变化的时候，自动刷新界面
}
}
第四个是主页的那个代码，上边也有，你参考一下吧。
浙公网安备 33010602011771号