动态设定ListView高度

来源:互联网 发布:dhcp 端口 编辑:程序博客网 时间:2024/05/16 09:06
public class UIUtils {    public static void setListViewHeightBasedOnChildren(ListView listView) {        //获取ListView对应的Adapter        ListAdapter listAdapter = listView.getAdapter();        if (listAdapter == null) {            // pre-condition            return;        }        int totalHeight = 0;        for (int i = 0, len = listAdapter.getCount(); i < len; i++) {            //listAdapter.getCount()返回数据项的数目            View listItem = listAdapter.getView(i, null, listView);            listItem.measure(0, 0);  //计算子项View 的宽高            totalHeight += listItem.getMeasuredHeight();  //统计所有子项的总高度        }        ViewGroup.LayoutParams params = listView.getLayoutParams();        params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));        //listView.getDividerHeight()获取子项间分隔符占用的高度        //params.height最后得到整个ListView完整显示需要的高度        listView.setLayoutParams(params);    }}

直接调用即可:

UIUtils.setListViewHeightBasedOnChildren(listview);


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