ListView完整显示高度

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import android.view.View;import android.view.ViewGroup;import android.widget.ListAdapter;import android.widget.ListView;public class ListViewHeightUtils {    public  static void setListViewHeightBasedOnChildren(ListView listView) {        //获取ListView对应的Adapter        ListAdapter listAdapter = listView.getAdapter();        if (listAdapter == null) {            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);    }}

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