java - 如何从数组填充 HashMap

Question

我有两个数组(实际上是一个，但我为每一列创建了两个)。我想用 ListView 的值填充 HashMap ，但 ListView 的所有元素都是数组的最后一个元素:

ArrayList<HashMap<String, String>> mylist = new ArrayList<HashMap<String, String>>();
HashMap<String, String> map = new HashMap<String, String>();

    for (int i=0; i<13; i++)
    {
        map.put("left1", date[i]);
        map.put("right1", name[i]);
        mylist.add(map);
    }


SimpleAdapter  simpleAdapter = new SimpleAdapter(this, mylist, R.layout.row,
        new String[] {"left1", "right1"}, new int[] {R.id.left, R.id.right});
lv1.setAdapter(simpleAdapter);

有什么想法吗？谢谢

Answer 1

您要将相同的 map 添加到数组的每个槽中。试试这个:

ArrayList<HashMap<String, String>> mylist = new ArrayList<HashMap<String, String>>();

for (int i=0; i<13; i++)
{
    HashMap<String, String> map = new HashMap<String, String>();
    map.put("left1", date[i]);
    map.put("right1", name[i]);
    mylist.add(map);
}