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iOS Build a Selfie App with Swift 2 Saving and Displaying Selfies Convenience Methods on Tag

Posted by Patrick Montalbano
Patrick Montalbano
494 Points

Why class func instead of init?

What is the reasoning behind choosing to create class functions to create instances of Location and Tag instead of creating custom "init" methods called init?

1 Answer

Amit Bijlani
STAFF
Amit Bijlani
Treehouse Guest Teacher
Amit Bijlani
Amit Bijlani
Treehouse Guest Teacher

To create an instance of an NSManagedObject you need to use the NSEntityDescription class which inserts a new object into the context. A custom initializer is generally used to accept parameters and initialize properties. That is not the case here, so we create a custom convenience constructor which returns a new instance given the parameters.