问题
What is the difference? The android documentation doesn't have a description for notifyDataSetInvalidated(). I was thinking maybe you call that function to notify all registered listeners, but use notifyDataSetChanged() to not notify them?
回答1:
Changed means the data set changed. Individual items updated, or items were added or removed. Invalidated means the data source is no longer available.
来源：https://stackoverflow.com/questions/6380051/android-listview-adapter-notifydatasetinvalidated-vs-notifydatasetchanged