当列表视图滚动那个时候的EditText设定的默认值 [英] when listview scroll that time edittext set default value

问题描述

我有一个的EditText和列表视图 - / + button.When我是点击按钮一样变化的EditText值递增/递减

当我设定的值例如 5 并滚动列表视图的EditText值作为像0 默认值。

我期运用这种方式。

 公共查看getView（最终诠释的立场，观点convertView，父母的ViewGroup）{
        LayoutInflater吹气=（LayoutInflater）context.getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
        查看连接;
        最后ViewHolder持有人;
        连接=新景（背景）;
        连接= inflater.inflate（R.layout.list_row_modified，NULL）;
        持有人=新ViewHolder（）;
        holder.up =（按钮）connection.findViewById（R.id.btn_plus）;
        holder.down =（按钮）connection.findViewById（R.id.btn_minus）;
        holder.date =（TextView中）connection.findViewById（R.id.text_date）;        //用的onClick holder.up / holder.down        connection.setTag（保持器）;
        返回连接;
    }
 

解决方案

您错误地使用了ViewHolder模式。因为你有一个小清单，EditText上，你甚至都不需要它。

和米洛斯说，这将回收您的列表项，所以当所谓的 getView（）您的值将设置为0。你必须保持一定的参考价值，并设置它们 getView（）方法。

I have listview with edittext and -/+ button.When i am click on button change edittext value like increment/decrement.

when i am set value like 5 and scroll the listview the edittext set value as a default value like 0.

I am useing this way

public View getView(final int position, View convertView,ViewGroup parent) {
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View connection;
        final ViewHolder holder;
        connection = new View(context);         
        connection = inflater.inflate(R.layout.list_row_modified, null);
        holder = new ViewHolder();
        holder.up = (Button) connection.findViewById(R.id.btn_plus);
        holder.down = (Button) connection.findViewById(R.id.btn_minus);
        holder.date = (TextView) connection.findViewById(R.id.text_date);

        //onClick with holder.up/holder.down

        connection.setTag(holder);
        return connection;
    }

解决方案

you have used the ViewHolder pattern incorrectly. since you have a small list with EditText, you don't even need it.

and as Milos said, it will recycle your list items so your values will set to 0 when getView() called. you have to keep some reference to the values and set them in getView() method.

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