Some fixes

app/src/main/java/app/fedilab/android/activities/ContextActivity.java

@@ -168,10 +168,4 @@ public class ContextActivity extends BaseActivity {
         return true;
     }
 
-    @Override
-    protected void onDestroy() {
-        super.onDestroy();
-        binding = null;
-        currentFragment = null;
-    }
 }

app/src/main/java/app/fedilab/android/activities/DraftActivity.java

@@ -205,12 +205,6 @@ public class DraftActivity extends BaseActivity implements StatusDraftAdapter.Dr
         }
     }
 
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        binding.lvStatus.setAdapter(null);
-        binding = null;
-    }
 
     @Override
     public void onAllDeleted() {

app/src/main/java/app/fedilab/android/activities/MediaActivity.java

@@ -294,7 +294,6 @@ public class MediaActivity extends BaseActivity implements OnDownloadInterface {
 
     @Override
     public void onDestroy() {
-        binding = null;
         unregisterReceiver(onDownloadComplete);
         super.onDestroy();
     }

app/src/main/java/app/fedilab/android/activities/SettingsActivity.java

@@ -156,15 +156,6 @@ public class SettingsActivity extends BaseActivity {
 
     }
 
-    @Override
-    protected void onDestroy() {
-        super.onDestroy();
-        if (currentFragment != null) {
-            currentFragment.onDestroy();
-        }
-        binding = null;
-
-    }
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {

app/src/main/java/app/fedilab/android/ui/fragment/media/FragmentMedia.java

@@ -122,7 +122,7 @@ public class FragmentMedia extends Fragment {
 
         binding.mediaPicture.setVisibility(View.VISIBLE);
         binding.mediaPicture.setTransitionName(attachment.url);
-        if (Helper.isValidContextForGlide(requireActivity())) {
+        if (Helper.isValidContextForGlide(requireActivity()) && isAdded()) {
             Glide.with(requireActivity())
                     .asBitmap()
                     .dontTransform()
@@ -142,7 +142,7 @@ public class FragmentMedia extends Fragment {
                                     binding.mediaPicture.setVisibility(View.VISIBLE);
                                     binding.pbarInf.setIndeterminate(true);
                                     binding.loader.setVisibility(View.VISIBLE);
-                                    if (Helper.isValidContextForGlide(requireActivity())) {
+                                    if (Helper.isValidContextForGlide(requireActivity()) && isAdded()) {
                                         Glide.with(requireActivity())
                                                 .asBitmap()
                                                 .dontTransform()
@@ -312,7 +312,6 @@ public class FragmentMedia extends Fragment {
             timer.cancel();
             timer = null;
         }
-        binding = null;
     }
 
     @Override

app/src/main/java/app/fedilab/android/ui/fragment/timeline/FragmentMastodonNotification.java

@@ -494,8 +494,8 @@ public class FragmentMastodonNotification extends Fragment implements Notificati
                 }
             }).start();
         }
-        super.onDestroyView();
         LocalBroadcastManager.getInstance(requireActivity()).unregisterReceiver(receive_action);
+        super.onDestroyView();
     }
 
     @Override