解决ListView在ScrollView显示不全

import android.view.View;
import android.view.ViewGroup;
import android.widget.ListAdapter;
import android.widget.ListView;

/**
 * 解决ListView在ScrollView显示不全
 * 
 *  
 *
 */
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++) {
      // stAdapter.getCount()返回数据项的数目
      View listItem = listAdapter.getView(i, null, listView);
      // 计算子项View 的宽高
      listItem.measure(0, 0);
      // 统计所有子项的总高度
      totalHeight += listItem.getMeasuredHeight();
    }
    ViewGroup.LayoutParams params = listView.getLayoutParams();
    params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
    // stView.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);
  }
}