在回收者视图的android活动中只有一张卡片

Question

我有一个包含3个项目的列表。我希望列表中的所有3个项目都可以通过RecyclerView的3个不同的CardView进行渲染。 但是，它只显示1张卡。

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder>{
        private List<DishBO> dishItemsList;

        public class ViewHolder extends RecyclerView.ViewHolder{
            CardView cv;
            public TextView dishName,dishPrice,dishQuantity;
            public ViewHolder(View view){
                super(view);
                cv=(CardView)view.findViewById(R.id.dishListCardView);
                dishName=(TextView)view.findViewById(R.id.dishNameEditText);
                dishPrice=(TextView)view.findViewById(R.id.dishPriceEditText);
                dishQuantity=(TextView)view.findViewById(R.id.dishQuantityEditText);
            }
        }

        public MyAdapter(List<DishBO> dishItemsList){
            this.dishItemsList=dishItemsList;
        }

        public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType){
            View itemView= LayoutInflater.from(parent.getContext()).inflate(R.layout.dish_list_row,parent,false);
            return new ViewHolder(itemView);
        }

        @Override
        public void onBindViewHolder(final ViewHolder holder,final int position){
            DishBO ob=dishItemsList.get(position);
            TextView textViewDishName=holder.dishName;
            TextView textViewDishPrice=holder.dishPrice;
            TextView textViewDishQuantity=holder.dishQuantity;

            textViewDishName.setText(String.valueOf(ob.getDishName()));
            textViewDishPrice.setText(String.valueOf(ob.getCostPrice()));
            textViewDishQuantity.setText(String.valueOf(ob.getQuantity()));
        }

        @Override
        public int getItemCount(){
            return dishItemsList.size();
        }

}

dishItemsList是3个项目的列表。