购物商城界面实现加减与删除功能

Question

如何使用Android studio制作一个购物商城界面并实现加减框与删除按钮的功能
以下是Mainactivity代码，要如何在其中加入实现加减框与删除按钮功能
private String[] titles = {"桌子", "苹果", "蛋糕", "线衣", "猕猴桃", "围巾"};
private String[] prices = {"1800", "10/kg", "300", "350", "10/kg", "280"};
private int[] icons = {R.drawable.zz, R.drawable.pingguo, R.drawable.bg, R.drawable.my,
R.drawable.mht, R.drawable.wj};
private Button button1;
private Button button2;
private EditText text;
private Button delete;
private int number=1;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ListView listView = findViewById(R.id.listView);
    MyBaseAdapter mAdapter = new MyBaseAdapter();
    listView.setAdapter(mAdapter);
}
class MyBaseAdapter extends BaseAdapter {
    @Override
    public int getCount() {
        return titles.length;
    }

    @Override
    public Object getItem(int i) {
        return titles[i];
    }

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView == null) {
            convertView = View.inflate(MainActivity.this, R.layout.list_item, null);
            holder = new ViewHolder();
            holder.title = convertView.findViewById
                    (R.id.title);
            holder.price = convertView.findViewById(R.id.price);
            holder.iv = convertView.findViewById(R.id.iv);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }
        holder.title.setText(titles[position]);
        holder.price.setText(prices[position]);
        holder.iv.setImageResource(icons[position]);
        return convertView;
    }
}

}

Answer 1

加减框要设置在list_item.layout里面，然后在getView里面初始化，在设置clickListener点击事件。点击后给price重新设置价格
删除按钮也要设置在list_item.layout里，在getView里面初始化，在设置clickListener点击事件。点击后调用listView.remove(position);进行删除，在用notifyDataSetChanged();方法刷新