From 0dec17eba53dcaa8527c9d1a73346442f682a85b Mon Sep 17 00:00:00 2001
From: Dennis Guse <dennis.guse@alumni.tu-berlin.de>
Date: Fri, 29 Oct 2021 05:58:15 +0200
Subject: [PATCH] Bugfix: prevent NPE in onDestroy.

---
 .../opentracks/fragments/StatisticsRecordingFragment.java   | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main/java/de/dennisguse/opentracks/fragments/StatisticsRecordingFragment.java b/src/main/java/de/dennisguse/opentracks/fragments/StatisticsRecordingFragment.java
index ffce5e4f8..81e3b4421 100644
--- a/src/main/java/de/dennisguse/opentracks/fragments/StatisticsRecordingFragment.java
+++ b/src/main/java/de/dennisguse/opentracks/fragments/StatisticsRecordingFragment.java
@@ -160,7 +160,11 @@ public class StatisticsRecordingFragment extends Fragment {
         super.onDestroy();
         trackRecordingServiceConnection = null;
         viewModel = null;
-        statisticsLiveData.removeObservers(getActivity());
+
+        if (statisticsLiveData != null) {
+            statisticsLiveData.removeObservers(getActivity());
+        }
+        statisticsLiveData = null;
     }
 
     private void updateUI() {