public void onActivityCreated()

in database/app/src/main/java/com/google/firebase/quickstart/database/java/listfragments/PostListFragment.java [61:126]
48 lines of code
2 McCabe index (conditional complexity)

    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        // Set up Layout Manager, reverse layout
        mManager = new LinearLayoutManager(getActivity());
        mManager.setReverseLayout(true);
        mManager.setStackFromEnd(true);
        mRecycler.setLayoutManager(mManager);

        // Set up FirebaseRecyclerAdapter with the Query
        Query postsQuery = getQuery(mDatabase);

        FirebaseRecyclerOptions options = new FirebaseRecyclerOptions.Builder<Post>()
                .setQuery(postsQuery, Post.class)
                .build();

        mAdapter = new FirebaseRecyclerAdapter<Post, PostViewHolder>(options) {

            @Override
            public PostViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
                LayoutInflater inflater = LayoutInflater.from(viewGroup.getContext());
                return new PostViewHolder(inflater.inflate(R.layout.item_post, viewGroup, false));
            }

            @Override
            protected void onBindViewHolder(PostViewHolder viewHolder, int position, final Post model) {
                final DatabaseReference postRef = getRef(position);

                // Set click listener for the whole post view
                final String postKey = postRef.getKey();
                viewHolder.itemView.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        // Launch PostDetailFragment
                        NavController navController = Navigation.findNavController(requireActivity(),
                                R.id.nav_host_fragment);
                        Bundle args = new Bundle();
                        args.putString(PostDetailFragment.EXTRA_POST_KEY, postKey);
                        navController.navigate(R.id.action_MainFragment_to_PostDetailFragment, args);
                    }
                });

                // Determine if the current user has liked this post and set UI accordingly
                if (model.stars.containsKey(getUid())) {
                    viewHolder.starView.setImageResource(R.drawable.ic_toggle_star_24);
                } else {
                    viewHolder.starView.setImageResource(R.drawable.ic_toggle_star_outline_24);
                }

                // Bind Post to ViewHolder, setting OnClickListener for the star button
                viewHolder.bindToPost(model, new View.OnClickListener() {
                    @Override
                    public void onClick(View starView) {
                        // Need to write to both places the post is stored
                        DatabaseReference globalPostRef = mDatabase.child("posts").child(postRef.getKey());
                        DatabaseReference userPostRef = mDatabase.child("user-posts").child(model.uid).child(postRef.getKey());

                        // Run two transactions
                        onStarClicked(globalPostRef);
                        onStarClicked(userPostRef);
                    }
                });
            }
        };
        mRecycler.setAdapter(mAdapter);
    }