摘要：
ExpandableListView 就是可以展开的ListView。ListView是Android开发中最常见的列表控件,功能虽然多，但是也有不适合干的事儿，比如，当我们的列表需要下拉项的时候(省市选择，目录神展开啥的），ExpandableListView是个绝佳的选择。且看官方APIA view that shows items in a vertically scrolling two-level list. This differs from the ListView by allowing two levels: groups which can individually be 阅读全文
