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Android

Posted by Ginger Ranslam
Ginger Ranslam
8,156 Points

Need help with code challenge:displaying checkmarks in a gridview.

Challenge task 1 of 3 Just like our Friends GridView in Ribbit, we want a GridView that displays a custom overlay for an image. In this case it's an overlay to indicate if a player is available offline. If a player is offline, then the overlay image will show to make their avatar fade out a bit. In the getView() method below, start by simply setting the mGridView variable to the parent parameter. Don't forget to cast it!

After doing this challenge it tells me "Bummer! Looks like you haven't set mGridView yet!" I need some guidance on what I'm doing wrong if anyone can help.

 import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import com.parse.ParseUser;

public class PlayerAdapter extends ArrayAdapter<ParseUser> {

    public GridView mGridView;

    /*
     * Some code has been omitted for brevity!
     */

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;


        if (convertView == null) {
            convertView = LayoutInflater.from(mContext).inflate(R.layout.player_item, null);
            holder = new ViewHolder();
            holder.playerImageView = (ImageView)convertView.findViewById(R.id.playerImageView);
            holder.overlayImageView  = (ImageView)convertView.findViewById(R.id.overlayImageView);
            convertView.setTag(holder);
        }
        else {
            holder = (ViewHolder)convertView.getTag();
        }

       //Here is the code I added
        GridView mGridView = (GridView) parent;         


        return convertView;
    }

    private static class ViewHolder {
        ImageView playerImageView;
        ImageView overlayImageView;
    }
}
Marko Koron
Marko Koron
20,658 Points

Just use:

mGridView = (GridView) parent;

mGridView is already declared as a member class variable up in the code.