android listview 滚动数据重复

我的listview 每个item都有一个edittext 默认值是1 当我修改第一行的edittext值之后 向下滚动
下边某一行的edittext值就变的跟第一行一样了 这该怎么解决 求解答？

你应该看看listView 的优化，创建一个适配器
public class MyAdapter extends BaseAdapter {

private List<Bean> mBean;


public CityHunterMyAdapter(List<Bean> bean) {
    mBean = bean;
}



@Override
public int getCount() {
    return mBean == null ? 0 : mBean.size();
}

@Override
public Object getItem(int position) {
    return mBean.get(position);
}

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


@Override
public View getView(final int position, View convertView, final ViewGroup parent) {

    ViewHolder viewHolder = null;
    if (convertView == null) {
        convertView = View.inflate(parent.getContext(), R.layout.city_item, null);
        viewHolder = new ViewHolder();
        viewHolder.mTextView = (TextView) convertView.findViewById(R.id.city_title);

        convertView.setTag(viewHolder);
    } else {

        viewHolder = (ViewHolder) convertView.getTag();
    }

List list=mBean.get(Position);
viewHolder.mTextView.setText(list);

    return convertView;
}


class ViewHolder {
    public TextView mTextView;


}

}