enumerateValues(forProperties:using:)
Executes a provided block with the fetched values for the given item properties.
Declaration
func enumerateValues(forProperties properties: Set<String>, using block: @escaping (String, Any, UnsafeMutablePointer<ObjCBool>) -> Void)Parameters
- properties:
A set of property keys that you want the values for.
- block:
A block object that executes for each fetched property value.
Discussion
Use this method to get property values in a batch fashion. Anytime the app accesses more than one property, enumerating over a set of property keys is more efficient than fetching each individual property with value(forProperty:).
To see which media property keys you can use with this method, refer to Media entity property keys, General media item property keys, Playlist property keys, and User-defined property keys.