Don't show the SwiperChooserDialog if a SwiperType preference has already been set.
diff --git a/src/main/java/com/xtremelabs/robolectric/shadows/ShadowDialogFragment.java b/src/main/java/com/xtremelabs/robolectric/shadows/ShadowDialogFragment.java
index 8c55bdc..c7849ed 100644
--- a/src/main/java/com/xtremelabs/robolectric/shadows/ShadowDialogFragment.java
+++ b/src/main/java/com/xtremelabs/robolectric/shadows/ShadowDialogFragment.java
@@ -16,6 +16,8 @@
  */
 @Implements(DialogFragment.class)
 public class ShadowDialogFragment extends ShadowFragment {
+    private static DialogFragment latestDialogFragment;
+
     private Dialog dialog;
 
     @RealObject
@@ -41,6 +43,8 @@
         realDialogFragment.onActivityCreated(null);
         realDialogFragment.onStart();
         realDialogFragment.onResume();
+
+        latestDialogFragment = realDialogFragment;
     }
 
     @Implementation
@@ -61,4 +65,8 @@
     public Dialog getDialog() {
         return dialog;
     }
+
+    public static DialogFragment getLatestDialogFragment() {
+        return latestDialogFragment;
+    }
 }