Restores the Transferring progress dialog.

app/src/main/java/com/aluxoft/earrecognition/intents/IntentTransferingFeatures.java

@@ -34,6 +34,8 @@ public class IntentTransferingFeatures extends Activity {
     public static final int KEY_REQUEST_IMAGE = 1;
     public static final int KEY_SIFT_ACTIVITY_LOADER = 2;
 
+    private ProgressDialog loading;
+
     File location;
 
     @Override
@@ -57,6 +59,7 @@ public class IntentTransferingFeatures extends Activity {
                 @Override
                 public void onClick(View v) {
                     try {
+                        _showTransferringMessage();
                         Intent returningIntent = new Intent(getIntent());
                         returningIntent.putExtra(
                                 "odk_intent_data",
@@ -140,9 +143,9 @@ public class IntentTransferingFeatures extends Activity {
                 startActivityForResult(intent, KEY_SIFT_ACTIVITY_LOADER);
             }
         } else if (requestCode == KEY_SIFT_ACTIVITY_LOADER) {
+            _showTransferringMessage();
             String list = data.getStringExtra("list");
             EarIdList earIdList = new Gson().fromJson(list, EarIdList.class);
-
             Intent returningIntent = new Intent(getIntent());
             returningIntent.putExtra(
                     "odk_intent_data",
@@ -153,4 +156,16 @@ public class IntentTransferingFeatures extends Activity {
         }
     }
 
+    private void _showTransferringMessage() {
+        loading = ProgressDialog.show(IntentTransferingFeatures.this,
+                "Transferring", "Please wait while transferring the features...");
+        loading.setCancelable(false);
+        loading.setProgressStyle(ProgressDialog.STYLE_SPINNER);
+    }
+
+    private void _closeTransferringMesagge() {
+        loading.dismiss();
+        loading = null;
+    }
+
 }