title: load image from url not working
body: <p>I have this link <a href="https://www.dropbox.com/s/ri4xbjaz64kezsg/30.jpg" rel="nofollow">https://www.dropbox.com/s/ri4xbjaz64kezsg/30.jpg</a> in my code...but I can't download image from that link.. if i use link other then this link then i am able to download.
  so what could problem with this link...plz help me</p>
  
  <pre><code>public class AndroidLoadImageFromURLActivity extends Activity {
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);
  
      // Loader image - will be shown before loading image
      int loader = R.drawable.loader;
  
      // Imageview to show
      ImageView image = (ImageView) findViewById(R.id.image);
  
      // Image url
      String image_url = "https://www.dropbox.com/s/ri4xbjaz64kezsg/30.jpg";
  
      // ImageLoader class instance
      ImageLoader imgLoader = new ImageLoader(getApplicationContext());
  
      // whenever you want to load an image from url
      // call DisplayImage function
      // url - image url to load
      // loader - loader image, will be displayed before getting image
      // image - ImageView 
      imgLoader.DisplayImage(image_url, loader, image);
  }
  </code></pre>
  
  <p>}</p>
  
  <p>this is image loader class.....................</p>
  
  <pre><code>public class ImageLoader {
  
  MemoryCache memoryCache=new MemoryCache();
  FileCache fileCache;
  private Map&lt;ImageView, String&gt; imageViews=Collections.synchronizedMap(new WeakHashMap&lt;ImageView, String&gt;());
  ExecutorService executorService; 
  
  public ImageLoader(Context context){
      fileCache=new FileCache(context);
      executorService=Executors.newFixedThreadPool(5);
  }
  
  int stub_id = R.drawable.ic_launcher;
  public void DisplayImage(String url, int loader, ImageView imageView)
  {
      stub_id = loader;
      imageViews.put(imageView, url);
      Bitmap bitmap=memoryCache.get(url);
      if(bitmap!=null)
          imageView.setImageBitmap(bitmap);
      else
      {
          queuePhoto(url, imageView);
          imageView.setImageResource(loader);
      }
  }
  
  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/2&lt;REQUIRED_SIZE || height_tmp/2&lt;REQUIRED_SIZE)
                  break;
              width_tmp/=2;
              height_tmp/=2;
              scale*=2;
          }
  
          //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();
  }
  </code></pre>
  
  <p>}</p>