IOS9 Day-by-day:ios developers must know about iOS 9 new technologies and APIs

IOS9 Day-by-day is a new series of blogs by author Chris Grant, covering the new technologies and APIs that iOS developers must know about iOS 9, as well as hands-on walkthroughs, and the associated code in each article Chris will host to GitHub.

In the first article, Chris introduced the three search APIs for iOS 9:
1) nsuseractivity, index user activity and app status.
2) IOS 9 new Corespotlight.framework provides the search API for adding, deleting, changing, and searching, and can index the content of the app.
3) Web markup,web content can be searched.

IOS9 Day-by-day:ios developers must know about iOS 9 new technologies and APIs