Graphics Programs Reference
In-Depth Information
Checking this box on turns on entitlements for
Nerdfeed
. An entitlement is essentially
permission to access a secure resource, like a ubiquity container or the device's encrypted
keychain.
By default, turning on entitlements gives the application access to a ubiquity container
with an identifier string that is the same as the application's bundle (as shown in the
iCloud Containers
table in
Figure 30.2
). Thus,
Nerdfeed
now has access to the
com.bignerdranch.Nerdfeed
ubiquity container in iCloud.
Giving an application access to a ubiquity container has two purposes. First, ubiquity con-
tainers allow an application to share data with other applications. This is often used for a
suite of applications developed by the same company. For example, an application that
created presentations could access the ubiquity container for an application that created
spreadsheets, and the spreadsheet could be imported into the presentation. Better yet, be-
cause multiple devices can run the same application, the spreadsheet could even be cre-
ated on a different device than the presentation.
