ScrollView中嵌套ListView时显示不全的解决方案

在ScrollView中嵌套ListView时，ListView只能显示一行多一点.

经过验证，简单有效，在listview.setAdapter()之后调用Utility.setListViewHeightBasedOnChilren(listview)就Okay 了。

public class Utility {      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);      }    }