Android ListView中的EditText 动态更新数据源 SimpleAdapter (一)

落日映苍穹つ 2022-05-29 07:54 186阅读 0赞

以下代码,想法比较奇特,毕竟写安卓没多久,写后台写的比较多,见笑了

这段代码只能修改数据量不超出屏幕可见范围的ListView,当数据量超出屏幕范围后,ExitText就无法起作用了,在尝试了各种思路后,用了新的方法解决了问题,请看

http://blog.csdn.net/weixin\_40099554/article/details/79629108

public void FlushPrice(){
    
        Bundle bunde = this.getIntent().getExtras();
        String name=bunde.getString("list");
        Gson gson = new Gson();
        List<GoodsItem> lists = gson.fromJson(name,
                new TypeToken<List<GoodsItem>>() {
                }.getType());
        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
            EditText et = (EditText) layout.findViewById(R.id.editText_one_price);// 从layout中获得控件,根据其id
            GoodsItem goodsItem = lists.get(i);
            goodsItem.reall_price = Double.parseDouble(String.valueOf(et.getText()));
    
        }
        all_money = 0;
        for (GoodsItem goodsList : lists) {
            all_money+= goodsList.count*goodsList.reall_price;
            all_price+= goodsList.count*goodsList.price;
        }
    
        price.setText(String.valueOf(all_money));
    }

@Override
    public void InitView() {
       price = (TextView) findViewById(R.id.act_setorder_all_money);
       Bundle bunde = this.getIntent().getExtras();
       String name=bunde.getString("list");
       Gson gson = new Gson();
       List<GoodsItem> lists = gson.fromJson(name,
               new TypeToken<List<GoodsItem>>() {
               }.getType());
        for (GoodsItem goodsList : lists) {
            all_money+= goodsList.count*goodsList.reall_price;
            all_price+= goodsList.count*goodsList.price;
        }
        price.setText(String.valueOf(all_money));
        for (GoodsItem goodsList : lists) {
            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);
            personalList.add(map);
        }
    }
    
    
    @Override
    public void InitData() {
        SimpleAdapter adapter = new SimpleAdapter(this,personalList,R.layout.list_detail,
                new String[]{
      "name","number","one_price"},new int[]{R.id.Text_one_name,R.id.Text_one_number,R.id.editText_one_price});
        listView = (ListView)findViewById(R.id.act_setorder_foodListView);
        listView.setAdapter(adapter);
    }

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