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注：最近由于OAuth上传图片碰到了难题，一直在做这方面的研究导致博客很久没有更新。 

    在上面一篇中已经实现了预读微博的UI界面，效果如上图，接下来完成功能部分的代码，当用户在上一个列表界面的列表中点击某一条微博的时候显示这个阅读微博的界面，在这个界面中根据传来的微博ID，然后根据这个ID通过api获取微博的具体内容进行显示。

    在ViewActivity.class的onCreate方法中添加如下代码：

private UserInfo user;    private String key="";    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.view);                。。。。。                //获取上一个页面传递过来的key，key为某一条微博的id        Intent i=this.getIntent();        if(!i.equals(null)){            Bundle b=i.getExtras();            if(b!=null){                if(b.containsKey("key")){                    key = b.getString("key");                    view(key);                }            }        }

private void view(String id){        user=ConfigHelper.nowUser;        OAuth auth=new OAuth();        String url = "http://api.t.sina.com.cn/statuses/show/:id.json";        List params=new ArrayList();        params.add(new BasicNameValuePair("source", auth.consumerKey));         params.add(new BasicNameValuePair("id", id));        HttpResponse response =auth.SignRequest(user.getToken(), user.getTokenSecret(), url, params);        if (200 == response.getStatusLine().getStatusCode()){            try {                InputStream is = response.getEntity().getContent();                Reader reader = new BufferedReader(new InputStreamReader(is), 4000);                StringBuilder buffer = new StringBuilder((int) response.getEntity().getContentLength());                try {                    char[] tmp = new char[1024];                    int l;                    while ((l = reader.read(tmp)) != -1) {                        buffer.append(tmp, 0, l);                    }                } finally {                    reader.close();                }                String string = buffer.toString();                //Log.e("json", "rs:" + string);                response.getEntity().consumeContent();                JSONObject data=new JSONObject(string);                if(data!=null){                    JSONObject u=data.getJSONObject("user");                    String userName=u.getString("screen_name");                    String userIcon=u.getString("profile_image_url");                    Log.e("userIcon", userIcon);                    String time=data.getString("created_at");                    String text=data.getString("text");                                        TextView utv=(TextView)findViewById(R.id.user_name);                    utv.setText(userName);                    TextView ttv=(TextView)findViewById(R.id.text);                    ttv.setText(text);                                        ImageView iv=(ImageView)findViewById(R.id.user_icon);                    AsyncImageLoader asyncImageLoader = new AsyncImageLoader();                    Drawable cachedImage = asyncImageLoader.loadDrawable(userIcon,iv, new ImageCallback(){                        @Override                        public void imageLoaded(Drawable imageDrawable,ImageView imageView, String imageUrl) {                                                        imageView.setImageDrawable(imageDrawable);                        }                    });                    if (cachedImage == null)                     {                        iv.setImageResource(R.drawable.usericon);                    }                    else                    {                        iv.setImageDrawable(cachedImage);                    }                    if(data.has("bmiddle_pic")){                        String picurl=data.getString("bmiddle_pic");                        String picurl2=data.getString("original_pic");                        ImageView pic=(ImageView)findViewById(R.id.pic);                        pic.setTag(picurl2);                        pic.setOnClickListener(new OnClickListener() {                            @Override                            public void onClick(View v) {                                Object obj=v.getTag();                                Intent intent = new Intent(ViewActivity.this,ImageActivity.class);                                Bundle b=new Bundle();                                b.putString("url", obj.toString());                                intent.putExtras(b);                                startActivity(intent);                            }                        });                        Drawable cachedImage2 = asyncImageLoader.loadDrawable(picurl,pic, new ImageCallback(){                            @Override                            public void imageLoaded(Drawable imageDrawable,ImageView imageView, String imageUrl) {                                showImg(imageView,imageDrawable);                            }                        });                        if (cachedImage2 == null)                         {                            //pic.setImageResource(R.drawable.usericon);                        }                        else                        {                            showImg(pic,cachedImage2);                        }                    }                }                }catch (IllegalStateException e) {                    e.printStackTrace();                } catch (IOException e) {                    e.printStackTrace();                } catch (JSONException e) {                    e.printStackTrace();                }         }        url = "http://api.t.sina.com.cn/statuses/counts.json";        params=new ArrayList();        params.add(new BasicNameValuePair("source", auth.consumerKey));         params.add(new BasicNameValuePair("ids", id));        response =auth.SignRequest(user.getToken(), user.getTokenSecret(), url, params);        if (200 == response.getStatusLine().getStatusCode()){            try {                InputStream is = response.getEntity().getContent();                Reader reader = new BufferedReader(new InputStreamReader(is), 4000);                StringBuilder buffer = new StringBuilder((int) response.getEntity().getContentLength());                try {                    char[] tmp = new char[1024];                    int l;                    while ((l = reader.read(tmp)) != -1) {                        buffer.append(tmp, 0, l);                    }                } finally {                    reader.close();                }                String string = buffer.toString();                response.getEntity().consumeContent();                JSONArray data=new JSONArray(string);                if(data!=null){                    if(data.length()>0){                        JSONObject d=data.getJSONObject(0);                        String comments=d.getString("comments");                        String rt=d.getString("rt");                        Button btn_gz=(Button)findViewById(R.id.btn_gz);                        btn_gz.setText("        转发("+rt+")");                        Button btn_pl=(Button)findViewById(R.id.btn_pl);                        btn_pl.setText("        评论("+comments+")");                    }                }            }            catch (IllegalStateException e) {                e.printStackTrace();            } catch (IOException e) {                e.printStackTrace();            } catch (JSONException e) {                e.printStackTrace();            }         }

private void showImg(ImageView view,Drawable img){        int w=img.getIntrinsicWidth();        int h=img.getIntrinsicHeight();        Log.e("w", w+"/"+h);        if(w>300)        {            int hh=300*h/w;            Log.e("hh", hh+"");            LayoutParams para=view.getLayoutParams();            para.width=300;            para.height=hh;            view.setLayoutParams(para);        }        view.setImageDrawable(img);

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