fh.post(url, new AjaxCallBack<String>(){@Overridepublic void onFailure(Throwable t, String strMsg) {//请求失败调用super.onFailure(t, strMsg);}@Overridepublic void onLoading(long count, long current) {//请求过程中没一秒回调一次super.onLoading(count, current);}@Overridepublic void onStart() {//開始异步请求时调用super.onStart();}@Overridepublic void onSuccess(String t) {//请求成功调用，并接受返回结果});

fh.get(url, callBack);使用方法同Post方式

fh.download(url, "/mnt/sdcard/21-sun.apk", new AjaxCallBack<File>(){@Overridepublic void onLoading(long count, long current) {// TODO Auto-generated method stubtvProcess.setText("下载进度"+(current/count));}@Overridepublic void onSuccess(File f) {//请求成功调用，并接受返回结果tvFileName.setText(f==null?

"":f.getAbsoluteFile().toString()); } });

AjaxParams params=new AjaxParams();//设置请求參数
params.put("category", "today");

    //创建FinalBitmap,并设置文件缓存的位置、内存缓存的百分比(如：系统内存的1/8)FinalBitmap    fb=FinalBitmap.create(this, diskCachePath, memoryCacheSizePercent);//进行配置。可不设置fb.configLoadingImage(R.drawable.default_big);//设置图片正在载入的时候显示的图片
fb.configLoadfailImage(R.drawable.error_big);//设置图片载入失败时候显示的图片

configBitmapMaxHeight(int bitmapHeight) // 配置默认图片的最大的高度configBitmapMaxWidth(int bitmapWidth) // 配置默认图片的最大的宽度configDisplayer(Displayer displayer)//设置显示器，比方在显示的过程中显示动画等//设置下载器。比方通过ftp或者其它协议去网络读取图片的时候能够设置这项
configDownlader(Downloader downlader) 

<span style="white-space:pre">    </span>//第一參数表示显示图片的UI。第二參数为图片网络地址

<span style="white-space:pre"> </span>fb.display(view,url);//载入图片。先从缓存中载入，内存没有再从网络载入    

public class SunNewsApplication extends Application {private FinalBitmap fb;@Overridepublic void onCreate(){fb=FinalBitmap.create(this);fb.configLoadingImage(R.drawable.default_big);//  设置图片正在载入的时候显示的图片}public FinalBitmap getFinalBitmap(){return fb;}
}

public class MoreStyleNewsListViewAdapter extends BaseAdapter {private Activity mActivity;private List<NewsItem> newsList;private FinalBitmap imageLoader;public MoreStyleNewsListViewAdapter(Activity mActivity,List<NewsItem> newsList){this.mActivity=mActivity;this.newsList=newsList;imageLoader=((SunNewsApplication)mActivity.getApplication()).getFinalBitmap();}private final int TYPE_COUNT=2;/*** 返回数据项的显示类型数据* 0 1 2*/@Overridepublic int getItemViewType(int position) {// TODO Auto-generated method stubreturn newsList!=null?

newsList.get(position).getStyle():-1; } /** * 返回类型个数 */ @Override public int getViewTypeCount() { // TODO Auto-generated method stub return TYPE_COUNT; } @Override public int getCount() { // TODO Auto-generated method stub Log.d("jereh","getCount()"); return newsList.size(); } @Override public Object getItem(int position) { // TODO Auto-generated method stub Log.d("jereh","getItem()"); return newsList.get(position); } @Override public long getItemId(int position) { // TODO Auto-generated method stub Log.d("jereh","getItemId()"); return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub ViewHolder holder=null; NewsItem item=newsList.get(position); if(convertView==null){ holder=new ViewHolder(); //将layout.xml转换为View switch(item.getStyle()){ case 0: convertView=LayoutInflater.from(mActivity).inflate(R.layout.news_item1, null); holder.ivImg1=(ImageView)convertView.findViewById(R.id.ivNewsImg); break; case 1: convertView=LayoutInflater.from(mActivity).inflate(R.layout.news_item2, null); holder.ivImg1=(ImageView)convertView.findViewById(R.id.ivImg1); holder.ivImg2=(ImageView)convertView.findViewById(R.id.ivImg2); holder.ivImg3=(ImageView)convertView.findViewById(R.id.ivImg3); break; } holder.tvTilte=(TextView)convertView.findViewById(R.id.tvTitle); convertView.setTag(holder);//记录个标识 }else{ holder=(ViewHolder)convertView.getTag(); } //向ui元素绑定数据 holder.tvTilte.setText(item.getTitle()); imageLoader.display(holder.ivImg1, item.getImgUrl()[0]);//载入图片。先从缓存中载入，内存没有再从网络载入 switch(item.getStyle()){ case 1: imageLoader.display(holder.ivImg2, item.getImgUrl()[1]);//载入图片，先从缓存中载入，内存没有再从网络载入 imageLoader.display(holder.ivImg3, item.getImgUrl()[2]);//载入图片，先从缓存中载入，内存没有再从网络载入 break; } Log.d("jereh","getView()"); return convertView; } private class ViewHolder{ private TextView tvTilte; private ImageView ivImg1; private ImageView ivImg2; private ImageView ivImg3; } }

public class MainActivity extends Activity {private RadioGroup rgChannel;private List<NewsItem> newsList=new ArrayList<NewsItem>();private MoreStyleNewsListViewAdapter adapter;private ListView newsListView;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_home);initView();requestData();}private void initView(){rgChannel=(RadioGroup)super.findViewById(R.id.rgChannel);rgChannel.check(R.id.rbToday);newsListView=(ListView)super.findViewById(R.id.lvNews);adapter=new MoreStyleNewsListViewAdapter(this,newsList);newsListView.setAdapter(adapter);}/*** 异步请求获得网络数据*/private void requestData(){String url="http://192.168.0.107:8080/21-sun/NewsListServlet";FinalHttp fh=new FinalHttp();AjaxParams params=new AjaxParams();//设置请求參数params.put("category", "today");fh.post(url, params,new AjaxCallBack<String>(){@Overridepublic void onFailure(Throwable t, String strMsg) {//请求失败调用// TODO Auto-generated method stubLog.d("jereh",strMsg);}@Overridepublic void onSuccess(String t) {//请求成功调用。并接受返回结果// TODO Auto-generated method stubGson gson=new Gson();List list=gson.fromJson(t, new TypeToken<ArrayList<NewsItem>>(){}.getType());newsList.addAll(list);adapter.notifyDataSetChanged();}});}

作者：杰瑞教育
出处：http://blog.csdn.net/jerehedu/ 
本文版权归烟台杰瑞教育科技有限公司和CSDN共同拥有，欢迎转载。但未经作者允许必须保留此段声明。且在文章页面明显位置给出原文连接。否则保留追究法律责任的权利。