Android ListView中的EditText 动态更新数据源 SimpleAdapter (二)

一时失言乱红尘 2022-05-29 09:10 106阅读 0赞

更改数据源后要先使用

adapter.notifyDataSetChanged();刷新数据

public void FlushPrice(){
        ListView list= (ListView)findViewById(R.id.act_setorder_foodListView);//获得listview
        for (int i = 0; i < list.getChildCount(); i++) {
            LinearLayout layout = (LinearLayout)list.getChildAt(i);// 获得子item的layout
           TextView textView = (TextView) layout.findViewById(R.id.Text_one_name) ;
            EditText et = (EditText) layout.findViewById(R.id.editText_one_price);// 从layout中获得控件,根据其id
            for (GoodsItem goodsItem :goodsItemList) {
                if (textView.getText().equals(goodsItem.name)) {
                    goodsItem.reall_price = Double.parseDouble(String.valueOf(et.getText()));
                }
            }
        }
        all_money = 0;
        for (GoodsItem goodsList : goodsItemList) {
            all_money+= goodsList.count*goodsList.reall_price;
            all_price+= goodsList.count*goodsList.price;
        }
        price.setText(String.valueOf(all_money));
        personalList.clear();
        personalList1.clear();
        for (GoodsItem goodsList : goodsItemList) {
            Map<String,Object> map=new HashMap<String,Object>();
            map.put("name",goodsList.name);
            map.put("number",goodsList.count+goodsList.product_units);
            map.put("one_price",goodsList.reall_price);
            personalList1.add(map);
        }
        personalList.addAll(personalList1);
        adapter.notifyDataSetChanged();
    }

这样就可以实现动态更新数据源了,因为每一个item有区分,所有超出屏幕范围外的item也可以更新数据了