1 files changed, 4 insertions, 0 deletions
diff --git a/app/src/main/java/de/danoeh/antennapod/fragment/ExternalPlayerFragment.java b/app/src/main/java/de/danoeh/antennapod/fragment/ExternalPlayerFragment.java
index a9bf39632..4ef26ad6c 100644
--- a/app/src/main/java/de/danoeh/antennapod/fragment/ExternalPlayerFragment.java
+++ b/app/src/main/java/de/danoeh/antennapod/fragment/ExternalPlayerFragment.java
@@ -209,6 +209,10 @@ public class ExternalPlayerFragment extends Fragment {
     }
 
     private void onPositionObserverUpdate() {
+        if (controller.getPosition() == PlaybackService.INVALID_TIME
+                || controller.getDuration() == PlaybackService.INVALID_TIME) {
+            return;
+        }
         mProgressBar.setProgress((int)
                 ((double) controller.getPosition() / controller.getDuration() * 100));
     }