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isKeyAvailable(_:)

Determines whether the contact property value for the specified key is fetched.

Declaration

func isKeyAvailable(_ key: String) -> Bool

Parameters

  • key:

    A contact property key. For a list of valid keys, see Contact Keys.

Return Value

true if the value is fetched, otherwise false.

Discussion

The isKeyAvailable(_:) or areKeysAvailable(_:) methods are used when you are not certain of the keys that were fetched. If this method returns false, refetch the contact using the contact identifier and the keys you want to fetch. Accessing a property that was not fetched will throw CNContactPropertyNotFetchedExceptionName.

See Also

Checking the Availability of Data