无法在Android适配器中加载图像

Question

我正在使用下面的代码在Android Pager中加载图像，但是我得到一个空白区域而不是图像，当我加载文本时，我得到一个输出。

public View onCreateView(LayoutInflater inflater, ViewGroup container, 
      Bundle savedInstanceState) { 
     View vi=container; 
     //if(container==null) 
      vi = inflater.inflate(R.layout.fragment_pager_list, null); 

     TextView title = (TextView)vi.findViewById(R.id.textTitle); // title 
     ImageView thumb_image=(ImageView)vi.findViewById(R.id.imageProduct); 
      // thumb image 

     HashMap<String, String> song = new HashMap<String, String>(); 
     song = ListProduct.productList.get(mNum); 

     // Setting all values in listview 
     title.setText(song.get(ListProduct.KEY_TITLE)); 
     Bitmap bitmap = BitmapFactory.decodeFile 
              (song.get(ListProduct.KEY_THUMB_URL)); 

     thumb_image.setImageBitmap(bitmap); 
     return vi; 

    } 

上面的代码我使用但我没有得到我错的地方。请帮帮我。

Answer 1

试试这个....

try { 
     URL url = new URL(ListProduct.KEY_THUMB_URL); 
     HttpGet httpRequest = null; 

     try { 
      httpRequest = new HttpGet(url.toURI()); 
     } catch (URISyntaxException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 

     HttpClient httpclient = new DefaultHttpClient(); 
     HttpResponse response = (HttpResponse) httpclient.execute(httpRequest); 

     HttpEntity entity = response.getEntity(); 
     BufferedHttpEntity b_entity = new BufferedHttpEntity(entity); 
     InputStream input = b_entity.getContent(); 

     bitmap = BitmapFactory.decodeStream(input); 

     //// Set Bitmap to Imageview 
     thumb_image.setImageBitmap(bitmap); 

    } catch (MalformedURLException e) { 
     Log.d("log", "bad url"); 
    } catch (IOException e) { 
     Log.d("log", "io error"); 
    }