Examples with PostViewHolder com.google.firebase.quickstart.database.java.viewholder.PostViewHolder used on opensource projects

Example 1 with PostViewHolder

use of com.google.firebase.quickstart.database.java.viewholder.PostViewHolder in project quickstart-android by firebase.

the class PostListFragment method onActivityCreated.

@Override
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);
}