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Android Android Lists and Adapters (2015) Lists with RecyclerViews Creating a RecyclerView ViewHolder

Posted by Ja'Nel Johnson
Ja'Nel Johnson
10,314 Points

What am I doing wrong?

Challenge 1/3: The class below is for a RecyclerView adapter. We need to add a view holder! Create a nested class called GameViewHolder. Make it public and have it extend RecyclerView.ViewHolder. Leave the rest blank for now.

I think I'm following the video, but I'm honestly confused.

Any suggestions?

Thank you.

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) {
        return null;
    }

    @Override
    public void onBindViewHolder(GameViewHolder holder, int position) {
        // code omitted for brevity
    }

    @Override
    public int getItemCount() {
        return 0;
    }

     public class GameViewHolder extends RecyclerView.ViewHolder<GameView.GameViewHolder>{ 
}

4 Answers

Seth Kroger
Seth Kroger
56,414 Points
Seth Kroger
Seth Kroger
56,414 Points
  1. you're missing a closing curly brace for the holder class. 2. You don't need the diamond operator for RecyclerView.ViewHolder, only RecyclerView.Adapter.
Ja'Nel Johnson
Ja'Nel Johnson
10,314 Points
Ja'Nel Johnson
Ja'Nel Johnson
10,314 Points

Hi Seth,

I'm sorry. I'm not understanding.

Are you referring to the first line of code?

I'm working on the last line of code. Are your suggestions still applicable?

Thanks!

Seth Kroger
Seth Kroger
56,414 Points
Seth Kroger
Seth Kroger
56,414 Points

Yes, I'm talking about the last line of code. The inner class should be declared as public class GameViewHolder extends RecyclerView.ViewHolder

Ja'Nel Johnson
Ja'Nel Johnson
10,314 Points
Ja'Nel Johnson
Ja'Nel Johnson
10,314 Points

Thanks, Seth. I was able to finish the challenge.

TERRENCE MAVHUNGA
TERRENCE MAVHUNGA
6,053 Points
TERRENCE MAVHUNGA
TERRENCE MAVHUNGA
6,053 Points

public class GameViewHolder extends RecyclerView.ViewHolder{ }