This example show how to add AirDrop File Sharing Feature into an iOS app
In iOS 7, Apple introduced a new feature called AirDrop to all iPhone 5 models, the fourth-generation iPad, the iPad mini, and fifth-generation iPod touch models.
With AirDrop, you can easily share data with other nearby iOS devices. In brief, the feature allows you to share photos, videos, contacts, URLs, Passbook passes, app listings on the App Store, media listings on iTunes Store, location in Maps, etc.
Source from: www.appcoda.com