CustomArrayAdapter实现:无法获取资源ID

Question

我想实现CustomArrayAdapter,以下是我为自定义适配器编写的构造函数

public CustomUsersAdapter(Context context, ArrayList<User> users) {
        super(context, 0, users);
     }

超级调用中的第二个参数包含在实例化视图时使用的TextView的布局文件的资源ID.我不知道这里引用了哪个资源ID.任何人都可以详细解释这里提到的资源ID.

我重写的getView方法如下: -

 @Override
     public View getView(int position, View convertView, ViewGroup parent) {
        // Get the data item for this position
        User user = getItem(position);    
        // Check if an existing view is being reused, otherwise inflate the view
        if (convertView == null) {
           convertView = LayoutInflater.from(getContext()).inflate(R.layout.item_user, parent, false);
        }
        // Lookup view for data population
        TextView tvName = (TextView) convertView.findViewById(R.id.tvName);
        TextView tvHome = (TextView) convertView.findViewById(R.id.tvHometown);
        // Populate the data into the template view using the data object
        tvName.setText(user.name);
        tvHome.setText(user.hometown);
        // Return the completed view to render on screen
        return convertView;
    }