ListView上的RatingBar显示以及来自Json parse的评级

public class MyAdapter extends BaseAdapter {
    private List<RatingItem> ratingList;
    private Context context;

    public MyAdapter(List<RatingItem> ratingList, Context context) {
        this.ratingList = ratingList;
        this.context = context;
    }

    @Override
    public int getCount() {
        return ratingList.size();
    }

    @Override
    public Object getItem(int position) {
        return ratingList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView == null) {
            convertView = LayoutInflater.from(context).inflate(R.layout.list_item, parent, false);
            holder = new ViewHolder();
            holder.ratingBar = convertView.findViewById(R.id.ratingBar);
            holder.textView = convertView.findViewById(R.id.textView);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }

        RatingItem item = ratingList.get(position);
        holder.ratingBar.setRating(item.getRating());
        holder.textView.setText(item.getName());

        return convertView;
    }

    private static class ViewHolder {
        RatingBar ratingBar;
        TextView textView;
    }
}

{
  "ratings": [
    {
      "name": "Item 1",
      "rating": 4.5
    },
    {
      "name": "Item 2",
      "rating": 3.8
    },
    ...
  ]
}

String json = "your json data";
Gson gson = new Gson();
RatingData ratingData = gson.fromJson(json, RatingData.class);
List<RatingItem> ratingList = ratingData.getRatings();