Add default cases for switches lack them

app/src/main/java/de/danoeh/antennapod/fragment/DownloadsFragment.java

@@ -62,6 +62,8 @@ public class DownloadsFragment extends Fragment {
                 case POS_LOG:
                     tab.setText(R.string.downloads_log_label);
                     break;
+                default:
+                    break;
             }
         }).attach();
 

app/src/main/java/de/danoeh/antennapod/fragment/EpisodesFragment.java

@@ -66,6 +66,8 @@ public class EpisodesFragment extends Fragment {
                 case POS_FAV_EPISODES:
                     tab.setText(R.string.favorite_episodes_label);
                     break;
+                default:
+                    break;
             }
         }).attach();
 

app/src/main/java/de/danoeh/antennapod/fragment/preferences/StatisticsFragment.java

@@ -54,6 +54,8 @@ public class StatisticsFragment extends Fragment {
                 case POS_SPACE_TAKEN:
                     tab.setText(R.string.download_statistics_label);
                     break;
+                default:
+                    break;
             }
         }).attach();