如何在ExpandableListView上添加级别？

Question

我正在学习本教程： http : //www.vogella.com/tutorials/AndroidListView/article.html#expandablelistview_concept ，我想向列表中添加另一个级别，然后将子级添加到第二个级别，如何修改上面的教程？

Answer 1

There are many other posts about n-level lists. The key will be within your BaseExpandableListAdaper and possibly using some kind of tree to store the groups and values. Nested adapters is the easiest way if you just need a 3-level list. See these articles:

• http://www.allappsdevelopers.com/TopicDetail.aspx?TopicID=c991d70a-4570-4e4b-8378-2191a4247a84
• Multi level view: expandablelistview
• https://code.google.com/p/tree-view-list-android/