Fix a crash

1 files changed, 3 insertions, 1 deletions

diff --git a/app/src/main/java/app/fedilab/android/mastodon/ui/fragment/media/FragmentMedia.java b/app/src/main/java/app/fedilab/android/mastodon/ui/fragment/media/FragmentMedia.java
index 4fad1bf32..6740a6d8e 100644
--- a/app/src/main/java/app/fedilab/android/mastodon/ui/fragment/media/FragmentMedia.java
+++ b/app/src/main/java/app/fedilab/android/mastodon/ui/fragment/media/FragmentMedia.java
@@ -395,7 +395,9 @@ public class FragmentMedia extends Fragment {
             @Override
             public boolean onPreDraw() {
                 imageView.getViewTreeObserver().removeOnPreDrawListener(this);
-                ActivityCompat.startPostponedEnterTransition(requireActivity());
+                if (isAdded()) {
+                    ActivityCompat.startPostponedEnterTransition(requireActivity());
+                }
                 return true;
             }
         });