Call a Swift Singleton from Objective-C

Question

I\'m having some trouble accessing a Swift Singleton from Objective-C.

@objc class SingletonTest: NSObject {

    // swiftSharedInstance is not accessible fr         


        

Answer 1

To make members of the SingletonTest class accessible (swiftSharedInstance is a member of this class), use @objcMembers modifier on the class, or add @objc modifier directly on the swiftSharedInstance:

@objc @objcMembers class SingletonTest: NSObject {

    // swiftSharedInstance is not accessible from ObjC
    class var swiftSharedInstance: SingletonTest {
        struct Singleton {
            static let instance = SingletonTest()
        }
        return Singleton.instance
    }        
}

Or:

@objc class SingletonTest: NSObject {

    // swiftSharedInstance is not accessible from ObjC
    @objc class var swiftSharedInstance: SingletonTest {
        struct Singleton {
            static let instance = SingletonTest()
        }
        return Singleton.instance
    }        
}