Fix crash

Signed-off-by: alperozturk <alper_ozturk@proton.me>

app/src/main/java/com/owncloud/android/ui/activity/FileActivity.java

@@ -780,9 +780,11 @@ public abstract class FileActivity extends DrawerActivity
     }
 
     public void refreshList() {
-        final Fragment fileListFragment = getSupportFragmentManager().findFragmentByTag(FileDisplayActivity.TAG_LIST_OF_FILES);
-        if (fileListFragment != null)  {
-            ((OCFileListFragment) fileListFragment).onRefresh();
+        final Fragment fragment = getSupportFragmentManager().findFragmentByTag(FileDisplayActivity.TAG_LIST_OF_FILES);
+        if (fragment instanceof OCFileListFragment listFragment) {
+            listFragment.onRefresh();
+        } else if (fragment instanceof FileDetailFragment detailFragment) {
+            detailFragment.goBackToOCFileListFragment();
         }
     }
 

app/src/main/java/com/owncloud/android/ui/fragment/FileDetailFragment.java

@@ -195,6 +195,10 @@ public class FileDetailFragment extends FileFragment implements OnClickListener,
         return ((FileDetailTabAdapter) binding.pager.getAdapter()).getFileDetailActivitiesFragment();
     }
 
+    public void goBackToOCFileListFragment() {
+        requireActivity().onBackPressed();
+    }
+
     @Override
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);