Add some null checks and formatting.

app/src/main/java/awais/instagrabber/fragments/main/ProfileFragment.java

@@ -140,7 +140,7 @@ public class ProfileFragment extends Fragment implements SwipeRefreshLayout.OnRe
         final ActionBar actionBar = fragmentActivity.getSupportActionBar();
         if (actionBar != null && !TextUtils.isEmpty(username)) {
             final String finalUsername = username.startsWith("@") ? username.substring(1)
-                    : username;
+                                                                  : username;
             actionBar.setTitle(finalUsername);
             actionBar.setSubtitle(null);
         }
@@ -766,11 +766,11 @@ public class ProfileFragment extends Fragment implements SwipeRefreshLayout.OnRe
 
         final String postCount = String.valueOf(profileModel.getMediaCount());
 
-        SpannableStringBuilder span = new SpannableStringBuilder(getResources().getQuantityString(R.plurals.main_posts_count,
-                profileModel.getMediaCount() > 2000000000L
-                        ? 2000000000
-                        : (int) profileModel.getMediaCount(),
-                postCount));
+        SpannableStringBuilder span = new SpannableStringBuilder(getResources().getQuantityString(
+                R.plurals.main_posts_count,
+                profileModel.getMediaCount() > 2000000000L ? 2000000000 : (int) profileModel.getMediaCount(),
+                postCount)
+        );
         span.setSpan(new RelativeSizeSpan(1.2f), 0, postCount.length(), 0);
         span.setSpan(new StyleSpan(Typeface.BOLD), 0, postCount.length(), 0);
         profileDetailsBinding.mainPostCount.setText(span);
@@ -778,9 +778,11 @@ public class ProfileFragment extends Fragment implements SwipeRefreshLayout.OnRe
 
         final String followersCountStr = String.valueOf(followersCount);
         final int followersCountStrLen = followersCountStr.length();
-        span = new SpannableStringBuilder(getResources().getQuantityString(R.plurals.main_posts_followers,
+        span = new SpannableStringBuilder(getResources().getQuantityString(
+                R.plurals.main_posts_followers,
                 followersCount > 2000000000L ? 2000000000 : (int) followersCount,
-                followersCountStr));
+                followersCountStr)
+        );
         span.setSpan(new RelativeSizeSpan(1.2f), 0, followersCountStrLen, 0);
         span.setSpan(new StyleSpan(Typeface.BOLD), 0, followersCountStrLen, 0);
         profileDetailsBinding.mainFollowers.setText(span);
@@ -788,15 +790,14 @@ public class ProfileFragment extends Fragment implements SwipeRefreshLayout.OnRe
 
         final String followingCountStr = String.valueOf(followingCount);
         final int followingCountStrLen = followingCountStr.length();
-        span = new SpannableStringBuilder(getString(R.string.main_posts_following,
-                followingCountStr));
+        span = new SpannableStringBuilder(getString(R.string.main_posts_following, followingCountStr));
         span.setSpan(new RelativeSizeSpan(1.2f), 0, followingCountStrLen, 0);
         span.setSpan(new StyleSpan(Typeface.BOLD), 0, followingCountStrLen, 0);
         profileDetailsBinding.mainFollowing.setText(span);
         profileDetailsBinding.mainFollowing.setVisibility(View.VISIBLE);
 
         profileDetailsBinding.mainFullName.setText(TextUtils.isEmpty(profileModel.getFullName()) ? profileModel.getUsername()
-                : profileModel.getFullName());
+                                                                                                 : profileModel.getFullName());
 
         final String biography = profileModel.getBiography();
         if (TextUtils.isEmpty(biography)) {
@@ -815,9 +816,8 @@ public class ProfileFragment extends Fragment implements SwipeRefreshLayout.OnRe
                 final String originalText = autoLinkItem.getOriginalText().trim();
                 navigateToProfile(originalText);
             });
-            profileDetailsBinding.mainBiography.addOnEmailClickListener(autoLinkItem -> Utils.openEmailAddress(getContext(),
-                    autoLinkItem.getOriginalText()
-                            .trim()));
+            profileDetailsBinding.mainBiography.addOnEmailClickListener(autoLinkItem -> Utils.openEmailAddress(
+                    getContext(), autoLinkItem.getOriginalText().trim()));
             profileDetailsBinding.mainBiography
                     .addOnURLClickListener(autoLinkItem -> Utils.openURL(getContext(), autoLinkItem.getOriginalText().trim()));
             profileDetailsBinding.mainBiography.setOnLongClickListener(v -> {
@@ -899,6 +899,7 @@ public class ProfileFragment extends Fragment implements SwipeRefreshLayout.OnRe
                 return true;
             });
         }
+        final MotionScene.Transition transition = root.getTransition(R.id.transition);
         if (!isReallyPrivate()) {
             if (isLoggedIn) {
                 profileDetailsBinding.mainFollowing.setClickable(true);
@@ -924,13 +925,13 @@ public class ProfileFragment extends Fragment implements SwipeRefreshLayout.OnRe
             binding.privatePage2.setVisibility(View.VISIBLE);
             binding.postsRecyclerView.setVisibility(View.GONE);
             binding.swipeRefreshLayout.setRefreshing(false);
-            root.getTransition(R.id.transition).setEnable(false);
+            if (transition != null) {
+                transition.setEnable(false);
+            }
         }
-
-        if (profileModel.getMediaCount() == 0) {
-            root.getTransition(R.id.transition).setEnable(false);
+        if (profileModel.getMediaCount() == 0 && transition != null) {
+            transition.setEnable(false);
         }
-
     }
 
     private void setupButtons(final long profileId) {
@@ -1037,21 +1038,21 @@ public class ProfileFragment extends Fragment implements SwipeRefreshLayout.OnRe
                     }
                 });
         storiesService.fetchHighlights(profileId,
-                new ServiceCallback<List<HighlightModel>>() {
-                    @Override
-                    public void onSuccess(final List<HighlightModel> result) {
-                        if (result != null) {
-                            profileDetailsBinding.highlightsList.setVisibility(View.VISIBLE);
-                            highlightsViewModel.getList().postValue(result);
-                        } else profileDetailsBinding.highlightsList.setVisibility(View.GONE);
-                    }
-
-                    @Override
-                    public void onFailure(final Throwable t) {
-                        profileDetailsBinding.highlightsList.setVisibility(View.GONE);
-                        Log.e(TAG, "Error", t);
-                    }
-                });
+                                       new ServiceCallback<List<HighlightModel>>() {
+                                           @Override
+                                           public void onSuccess(final List<HighlightModel> result) {
+                                               if (result != null) {
+                                                   profileDetailsBinding.highlightsList.setVisibility(View.VISIBLE);
+                                                   highlightsViewModel.getList().postValue(result);
+                                               } else profileDetailsBinding.highlightsList.setVisibility(View.GONE);
+                                           }
+
+                                           @Override
+                                           public void onFailure(final Throwable t) {
+                                               profileDetailsBinding.highlightsList.setVisibility(View.GONE);
+                                               Log.e(TAG, "Error", t);
+                                           }
+                                       });
     }
 
     private void setupCommonListeners() {
@@ -1116,14 +1117,14 @@ public class ProfileFragment extends Fragment implements SwipeRefreshLayout.OnRe
         });
         profileDetailsBinding.btnLiked.setOnClickListener(v -> {
             final NavDirections action = ProfileFragmentDirections.actionProfileFragmentToSavedViewerFragment(profileModel.getUsername(),
-                    profileModel.getPk(),
-                    PostItemType.LIKED);
+                                                                                                              profileModel.getPk(),
+                                                                                                              PostItemType.LIKED);
             NavHostFragment.findNavController(this).navigate(action);
         });
         profileDetailsBinding.btnTagged.setOnClickListener(v -> {
             final NavDirections action = ProfileFragmentDirections.actionProfileFragmentToSavedViewerFragment(profileModel.getUsername(),
-                    profileModel.getPk(),
-                    PostItemType.TAGGED);
+                                                                                                              profileModel.getPk(),
+                                                                                                              PostItemType.TAGGED);
             NavHostFragment.findNavController(this).navigate(action);
         });
         if (!disableDm) {
@@ -1162,7 +1163,7 @@ public class ProfileFragment extends Fragment implements SwipeRefreshLayout.OnRe
                     // show stories
                     final NavDirections action = ProfileFragmentDirections
                             .actionProfileFragmentToStoryViewerFragment(StoryViewerOptions.forUser(profileModel.getPk(),
-                                    profileModel.getFullName()));
+                                                                                                   profileModel.getFullName()));
                     NavHostFragment.findNavController(this).navigate(action);
                     return;
                 }
@@ -1188,12 +1189,12 @@ public class ProfileFragment extends Fragment implements SwipeRefreshLayout.OnRe
         if (profileModel != null) {
             final FragmentManager fragmentManager = getParentFragmentManager();
             final ProfilePicDialogFragment fragment = ProfilePicDialogFragment.getInstance(profileModel.getPk(),
-                    username,
-                    profileModel.getProfilePicUrl());
+                                                                                           username,
+                                                                                           profileModel.getProfilePicUrl());
             final FragmentTransaction ft = fragmentManager.beginTransaction();
             ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN)
-                    .add(fragment, "profilePicDialog")
-                    .commit();
+              .add(fragment, "profilePicDialog")
+              .commit();
         }
     }
 
@@ -1206,13 +1207,13 @@ public class ProfileFragment extends Fragment implements SwipeRefreshLayout.OnRe
 
     private void setupPosts() {
         binding.postsRecyclerView.setViewModelStoreOwner(this)
-                .setLifeCycleOwner(this)
-                .setPostFetchService(new ProfilePostFetchService(profileModel, isLoggedIn))
-                .setLayoutPreferences(layoutPreferences)
-                .addFetchStatusChangeListener(fetching -> updateSwipeRefreshState())
-                .setFeedItemCallback(feedItemCallback)
-                .setSelectionModeCallback(selectionModeCallback)
-                .init();
+                                 .setLifeCycleOwner(this)
+                                 .setPostFetchService(new ProfilePostFetchService(profileModel, isLoggedIn))
+                                 .setLayoutPreferences(layoutPreferences)
+                                 .addFetchStatusChangeListener(fetching -> updateSwipeRefreshState())
+                                 .setFeedItemCallback(feedItemCallback)
+                                 .setSelectionModeCallback(selectionModeCallback)
+                                 .init();
         binding.postsRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
             @Override
             public void onScrolled(@NonNull final RecyclerView recyclerView, final int dx, final int dy) {