安卓简单开发--listview在Scrollview中只显示一行

 在ScrollView中嵌套ListView空间，无法正确的计算ListView的大小

所以我们要在Scrollview中实现多条数据都有只需要：

private void setListViewHeightBasedOnChildren(ListView listView) {    ListAdapter listAdapter = listView.getAdapter();    if (listAdapter == null) {        // pre-condition        return;    }    int totalHeight = 0;    for (int i = 0; i < listAdapter.getCount(); i++) {        View listItem = listAdapter.getView(i, null, listView);        listItem.measure(0, 0);        totalHeight += listItem.getMeasuredHeight();    }    ViewGroup.LayoutParams params = listView.getLayoutParams();    params.height = totalHeight            + (listView.getDividerHeight() * (listAdapter.getCount() - 1));        listView.setLayoutParams(params);}

就可以实现了，