title: Get Bitmap from ImageView loaded with Picasso
body: <p>I had a method that loads images, if the image has not been loaded before it will look for it on a server. Then it stores it in the apps file system. If it is in the file system it loads that image instead as that is much faster than pulling the images from the server. If you have loaded the image before without closing the app it will be stored in a static dictionary so that it can be reloaded without using up more memory, to avoid out of memory errors.</p>
  
  <p>This all worked fine until I started using the Picasso image loading library. Now I'm loading images into an ImageView but I don't know how to get the Bitmap that is returned so that I can store it in a file or the static dictionary. This has made things more difficult. because it means it tries to load the image from the server every time, which is something I don't want to happen. Is there a way I can get the Bitmap after loading it into the ImageView? Below is my code:</p>
  
  <pre><code>public Drawable loadImageFromWebOperations(String url,
          final String imagePath, ImageView theView, Picasso picasso) {
      try {
          if (Global.couponBitmaps.get(imagePath) != null) {
              scaledHeight = Global.couponBitmaps.get(imagePath).getHeight();
              return new BitmapDrawable(getResources(),
                      Global.couponBitmaps.get(imagePath));
          }
          File f = new File(getBaseContext().getFilesDir().getPath()
                  .toString()
                  + "/" + imagePath + ".png");
  
          if (f.exists()) {
              picasso.load(f).into(theView);
  </code></pre>
  
  <p><strong>This line below was my attempt at retrieving the bitmap it threw a null pointer exception, I assume this is because it takes a while for Picasso to add the image to the ImageView</strong></p>
  
  <pre><code>            Bitmap bitmap = ((BitmapDrawable)theView.getDrawable()).getBitmap();
              Global.couponBitmaps.put(imagePath, bitmap);
              return null;
          } else {
              picasso.load(url).into(theView);
              return null;
          }
      } catch (OutOfMemoryError e) {
          Log.d("Error", "Out of Memory Exception");
          e.printStackTrace();
          return getResources().getDrawable(R.drawable.default1);
      } catch (NullPointerException e) {
          Log.d("Error", "Null Pointer Exception");
          e.printStackTrace();
          return getResources().getDrawable(R.drawable.default1);
      }
  }
  </code></pre>
  
  <p>Any help would be greatly appreciated, thank you!</p>