Swift: using NSDataDetectors

Question

I am trying to port some Obj-c code and have problems creating NSDataDetector.

In Objective-C, I would do the following:

NSDataDetector *linkDetector = [NSDataDetector dataDetectorWithTypes:NSTextCheckingTypeLink error:nil]; 

From the documentation I have to do this:

 let linkDetector = NSDataDetector.dataDetectorWithTypes(NSTextCheckingType.Link, error: &error) 

But I get a compiler error: "NSTextCheckingType" does not convert to "NStextCheckingTypes"

If try this:

 let linkDetector = NSDataDetector.dataDetectorWithTypes(NSTextCheckingTypes(), error: &gError) 

However, it passes, I get an exception at runtime:

 [NSDataDetector initWithTypes:error:]: no data detector types specified' 

Not sure if this is a mistake or not.

Thanks.

Answer 1

NSTextCheckingTypes to type UInt64; use the rawValue property on NSTextCheckingType to convert it.

 let ld = NSDataDetector(types: NSTextCheckingType.Link.rawValue, error: nil) 

Answer 2

The davextreme solution returns an error in Xcode 6.1 (6A1046a).

The 'fromRaw' method has been replaced by the 'rawValue' property

The new syntax uses rawValue instead of toRaw() as follows:

 let ld = NSDataDetector(types:NSTextCheckingType.Link.rawValue, error: nil) 

Answer 3

The jatoben solution returns an error in beta 4:

'NSTextCheckingType' does not have a name with a name

Changing this parameter to toRaw() resolves this:

 let ld = NSDataDetector.dataDetectorWithTypes(NSTextCheckingType.Link.toRaw(), error: nil) 

Answer 4

Working solution for Swift 4:

 let detector = try! NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue) 

Apple Docs Link: https://developer.apple.com/documentation/foundation/nstextcheckingresult.checkingtype/1411725-link