Android Programming The Big Nerd Ranch Guide, 3rd Edition

Preparing RecyclerView to Display Images

501

Update PhotoAdapter’s onBindViewHolder(...) to set the placeholder image as the ImageView’s
Drawable.

Listing 26.3  Binding default image (PhotoGalleryFragment.java)

public class PhotoGalleryFragment extends Fragment {
...
private class PhotoAdapter extends RecyclerView.Adapter {
...
@Override
public void onBindViewHolder(PhotoHolder photoHolder, int position) {
GalleryItem galleryItem = mGalleryItems.get(position);
photoHolder.bindGalleryItem(galleryItem);
Drawable placeholder = getResources().getDrawable(R.drawable.bill_up_close);
photoHolder.bindDrawable(placeholder);
}
...
}
...
}

Run PhotoGallery, and you should see an array of close-up Bills, as in Figure 26.2.

Figure 26.2  A Billsplosion

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