问扫描自己线程中的条形码(ZXing)并显示ProgessDialog

EN

public void onActivityResult(int requestCode, int resultCode, Intent intent) {  
      switch (requestCode) {
      case IntentIntegrator.REQUEST_CODE:
         if (resultCode == Activity.RESULT_OK) {

            IntentResult intentResult = 
               IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);

            if (intentResult != null) {
               String scannedCode = intentResult.getContents();
               String format = intentResult.getFormatName();

               //Gets information to the scanned product by the
               //Google-Shopping-API in form of a rss feed.
               AndroidFeedParser afp = new AndroidFeedParser("https://www.googleapis.com/shopping/search/v1/public/products?key=" +
                    AndroidFeedParser.API_KEY + "&country=DE&q=" + scannedCode + "&alt=" + AndroidFeedParser.FEED_CODE);

               //Parses the given rss feed and gives a FeedItem-List
               List<FeedItem> item = afp.parse();
               Toast toast = null;

               if(item.size() < 1) 
                   //products is NOT listed within the Google-Shopping-API
                   toast = Toast.makeText(this, "Dieses Produkt ist nicht in der Datenbank.", Toast.LENGTH_LONG);
                else 
                   //product is listed within the Google-Shopping-API
                   toast = Toast.makeText(this, item.get(1).getPrice().toString(), Toast.LENGTH_LONG);
               toast.show();
               Log.d("SEARCH_EAN", "OK, EAN: " + scannedCode + ", FORMAT: " + format);
            } else {
               Log.e("SEARCH_EAN", "IntentResult je NULL!");
            }
         } else if (resultCode == Activity.RESULT_CANCELED) {
            Log.e("SEARCH_EAN", "CANCEL");
         }
      } }