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Android Android Lists and Adapters (2015) Lists with RecyclerViews Adding Methods for a RecyclerView Adapter

Zubeyr Aciksari
Zubeyr Aciksari
21,074 Points

We'll start with an easy one: getItemCount(). Change it to return the number of items this adapter is adapting.

Can someone please send the answer, i am stuck in here! Thanks!

GameAdapter.java
public class GameAdapter extends RecyclerView.Adapter<GameAdapter.GameViewHolder> {

    private Game[] mGames;

    public GameAdapter(Game[] games) {
        mGames = games;
    }

    @Override
    public GameViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.game_list_item, parent, false);
        // Task 2
        return null;
    }

    @Override
    public void onBindViewHolder(GameViewHolder holder, int position) {
        // Task 3
    }

    @Override
    public int getItemCount() {
        // Task 1
       int itemCount = mAdaptee.getItemCount();

        }
        return itemCount;
    }

    /* Add your code here */
    public class GameViewHolder extends RecyclerView.ViewHolder {
        public TextView mTitleLabel;

        public GameViewHolder(View v) {
            super(v);
            mTitleLabel = (TextView)v.findViewById(R.id.titleLabel);
        }

        public void bindGame(Game game) {
            mTitleLabel.setText(game.getTitle());
        }
    }
}

3 Answers

Hello,

What you're wanting to do in the getItemCount() method is return the number of items in the collection you're adapting, in this case mGames, which is just an array of Game objects. Arrays have a property that allows you to get their length which is all you need to return.

I also notice that you have an extra } before your return statement.

Uros Mitic
Uros Mitic
4,704 Points

This worked for me:

@Override public int getItemCount() { return mGames.length; }

Uros Mitic
Uros Mitic
4,704 Points

This worked for me:

@Override public int getItemCount() { return mGames.length; }