数据格式为

{"sid":"737",

"tts":"http:\/\/news.iciba.com\/admin\/tts\/2013-12-11.mp3",

"content":"I don't want us to be together because we have to,I want us to be together because we want to.",

"note":"\u6211\u4e0d\u5e0c\u671b\u6211\u4eec\u56e0\u4e3a\u201c\u4e0d\u5f97\u4e0d\u201d\u800c\u5728\u4e00\u8d77\uff0c\u6211\u5e0c\u671b\u6211\u4eec\u662f\u56e0\u4e3a\u60f3\u5728\u4e00\u8d77\u800c\u5728\u4e00\u8d77\u3002",

"translation":"\u611f\u8c22@\u7a0b\u5f88\u591a\u8981\u79d2\u8650\u6570\u5b66 \u6295\u7a3f\u3002\u8bcd\u9738\u5c0f\u7f16\uff0c\u8fd9\u53e5\u8bdd\u6765\u81ea\u300a\u51b0\u6cb3\u4e16\u7eaa2\u300b\uff0c\u662f\u4e00\u4e2a\u7cfb\u5217\u7684\u52a8\u753b\u7535\u5f71\uff0c\u975e\u5e38\u641e\u7b11\uff0c\u4f60\u770b\u8fc7\u5417\uff1f",

"picture":"http:\/\/cdn.iciba.com\/news\/word\/2013-12-11.jpg","picture2":"http:\/\/cdn.iciba.com\/news\/word\/big_2013-12-11b.jpg","caption":"\u8bcd\u9738\u6bcf\u65e5\u4e00\u53e5",

"dateline":"2013-12-11",

"s_pv":"8693",

"sp_pv":"2090",

"tags":[{"id":"9","name":"\u7231\u60c5"},{"id":"14","name":"\u7535\u5f71\u7ecf\u5178"}],

"fenxiang_img":"http:\/\/cdn.iciba.com\/web\/news\/longweibo\/imag\/2013-12-11.jpg"}

JSON字段解释

JSON 字段解释

{

'sid':'' #每日一句ID

'tts': '' #音频地址

'content':'' #英文内容

'note': '' #中文内容

'translation':'' #词霸小编

'picture': '' #图片地址

'picture2': '' #大图片地址

'caption':'' #标题

'dateline':'' #时间

's_pv':'' #浏览数

'sp_pv':'' #语音评测浏览数

'tags':'' #相关标签

'fenxiang_img':'' #合成图片，建议分享微博用的

}

最终实现的效果

具体实现，使用AsynTask异步访问网络：

class Load extends AsyncTask

{

public String url = "http://open.iciba.com/dsapi/";

ProgressDialog pdlg;

String jsonstr = "";

JSONObject json = null;

@Override

protected String doInBackground(String... params) {

//TODO Auto-generated method stub

try{

DefaultHttpClient httpClient = new DefaultHttpClient();

HttpPost httppost = new HttpPost(url);

HttpResponse httpResponse = httpClient.execute(httppost);

HttpEntity httpEntity = httpResponse.getEntity();

InputStream is = httpEntity.getContent();

BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));

StringBuilder sb = new StringBuilder();

String line = null;

while ((line = reader.readLine()) != null)

{

sb.append(line + "\n");

}

is.close();

jsonstr = sb.toString();

json = new JSONObject(jsonstr.toString());

engstr = json.getString("content");

chistr = json.getString("note");

imagurl = json.getString("picture");

timestr = json.getString("dateline");

fromstr = json.getString("translation");

JSONArray array = json.getJSONArray("tags");

for(int i=0;i

{

JSONObject tag = (JSONObject)array.get(i);

tagstr += tag.getString("name")+"," ;

}

}catch(Exception e)

{

e.printStackTrace();

}

return null;

}

@Override

protected void onPostExecute(String result) {

//TODO Auto-generated method stub

super.onPostExecute(result);

pdlg.dismiss();

imageLoader.DisplayImage(imagurl,imageview);

eng.setText(" "+engstr);

chi.setText(" "+chistr);

tag.setText(tagstr);

time.setText(timestr);

from.setText(" "+fromstr);

}

@Override

protected void onPreExecute() {

//TODO Auto-generated method stub

super.onPreExecute();

pdlg = new ProgressDialog(context);

pdlg.setCancelable(false);

pdlg.setMessage("正在加载");

pdlg.show();

}

}

使用了一个图片处理的工具类，ImageLoader,主要用来通过url解析图片，处理图片的大小，以文件的形式缓存图片。

public class ImageLoader {

MemoryCache memoryCache=new MemoryCache();

FileCache fileCache;

private Map imageViews=Collections.synchronizedMap(new WeakHashMap());

ExecutorService executorService;

public ImageLoader(Context context){

fileCache=new FileCache(context);

executorService=Executors.newFixedThreadPool(5);

}

final int stub_id = R.drawable.drug_trans;

public void DisplayImage(String url, ImageView imageView)

{

imageViews.put(imageView, url);

Bitmap bitmap=memoryCache.get(url);

if(bitmap!=null)

imageView.setImageBitmap(bitmap);

else

{

queuePhoto(url, imageView);

imageView.setImageResource(stub_id);

}

}

private void queuePhoto(String url, ImageView imageView)

{

PhotoToLoad p=new PhotoToLoad(url, imageView);

executorService.submit(new PhotosLoader(p));

}

private Bitmap getBitmap(String url)

{

File f=fileCache.getFile(url);

//from SD cache

Bitmap b = decodeFile(f);

if(b!=null)

return b;

//from web

try {

Bitmap bitmap=null;

URL imageUrl = new URL(url);

HttpURLConnection conn = (HttpURLConnection)imageUrl.openConnection();

conn.setConnectTimeout(30000);

conn.setReadTimeout(30000);

conn.setInstanceFollowRedirects(true);

InputStream is=conn.getInputStream();

OutputStream os = new FileOutputStream(f);

Utils.CopyStream(is, os);

os.close();

bitmap = decodeFile(f);

return bitmap;

} catch (Exception ex){

ex.printStackTrace();

return null;

}

}

//decodes image and scales it to reduce memory consumption

private Bitmap decodeFile(File f){

try {

//decode image size

BitmapFactory.Options o = new BitmapFactory.Options();

o.inJustDecodeBounds = true;

BitmapFactory.decodeStream(new FileInputStream(f),null,o);

//Find the correct scale value. It should be the power of 2.

final int REQUIRED_SIZE=70;

int width_tmp=o.outWidth, height_tmp=o.outHeight;

int scale=1;

while(true){

if(width_tmp/1.5

break;

width_tmp/=1.5;

height_tmp/=1.5;

scale*=1.5;

}

//decode with inSampleSize

BitmapFactory.Options o2 = new BitmapFactory.Options();

o2.inSampleSize=scale;

return BitmapFactory.decodeStream(new FileInputStream(f), null, o2);

} catch (FileNotFoundException e) {}

return null;

}

//Task for the queue

private class PhotoToLoad

{

public String url;

public ImageView imageView;

public PhotoToLoad(String u, ImageView i){

url=u;

imageView=i;

}

}

class PhotosLoader implements Runnable {

PhotoToLoad photoToLoad;

PhotosLoader(PhotoToLoad photoToLoad){

this.photoToLoad=photoToLoad;

}

@Override

public void run() {

if(imageViewReused(photoToLoad))

return;

Bitmap bmp=getBitmap(photoToLoad.url);

memoryCache.put(photoToLoad.url, bmp);

if(imageViewReused(photoToLoad))

return;

BitmapDisplayer bd=new BitmapDisplayer(bmp, photoToLoad);

Activity a=(Activity)photoToLoad.imageView.getContext();

a.runOnUiThread(bd);

}

}

boolean imageViewReused(PhotoToLoad photoToLoad){

String tag=imageViews.get(photoToLoad.imageView);

if(tag==null || !tag.equals(photoToLoad.url))

return true;

return false;

}

//Used to display bitmap in the UI thread

class BitmapDisplayer implements Runnable

{

Bitmap bitmap;

PhotoToLoad photoToLoad;

public BitmapDisplayer(Bitmap b, PhotoToLoad p){bitmap=b;photoToLoad=p;}

public void run()

{

if(imageViewReused(photoToLoad))

return;

if(bitmap!=null)

photoToLoad.imageView.setImageBitmap(bitmap);

else

photoToLoad.imageView.setImageResource(stub_id);

}

}

public void clearCache() {

memoryCache.clear();

fileCache.clear();

}

}

其他精彩文章文章