CloudKit NSPredicate不区分大小写

Question

I have a cloud kit query that uses the NSPredicate below to search for records where the name begins with the value the user enters into the UITextField . I would like to make the search case insensitive so if the user searched for "apple" it would display results for "Apple" and "apple". How can I do this? I have also tried to change the query to CONTAINS instead of BEGINSWITH but the app returns no results as it is looking for the value in an array. Is it possible to see if the string contains the text field string? Thanks

var p = NSPredicate(format: "name BEGINSWITH %@", titleLabel.text!)

Answer 1

As per the CKQuery docs :

For fields that contain string values, you can match the beginning portion of the string using the BEGINSWITH operator as shown in Listing 4. You cannot use other string comparison operators such as CONTAINS or ENDSWITH. When using this operator, the field must contain a string value and must start with the string you specified. Matches are case sensitive. In the examples, the predicate matches records whose favoriteColors field contained the strings red, reddish, or red green duct tape.