ListView

public void setListViewHeightBasedOnChildren(ListView listView) { // 获取ListView对应的Adapter    MyOrderAdapter listAdapter = (MyOrderAdapter) 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);        // 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));    // 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);  }