Swift method not visible in objective C

Question

I have project using Swift 3.2 and Objective-C compiling with Xcode Version 9.0 (9A235). It compiles fine in Swift 3.2. However, when I switch to Swift 4.0, the methods declared in Swift is no longer visible in Objective-C. The error is No visible @interface "UserAPI" declares the selector ...

Most probably a duplicate of https://stackoverflow.com/questions/46829032/xcode-9-0-1-swift-4-no-method-declared-with-objective-c-selector-onclickfor and https://stackoverflow.com/questions/44390378/how-can-i-deal-with-objc-inference-deprecation-with-selector-in-swift-4 – add `@objc` to the members that you want to expose to Objective-C. — Martin R, Oct 21 '17 at 07:36

score 8 · Answer 1 · answered Oct 21 '17 at 21:39

8

You should add @objc before your function like this.

@objc func doSomething() {
   //Some code goes here
}

answered Oct 21 '17 at 21:39

Jared_M

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score 2 · Answer 2 · answered Aug 12 '19 at 16:16

2

Or! Use @objcMembers if you'd like to expose the entire class to Objective-C

@objcMembers class MyClass {

    func methodOne() {
        // no @objc required!
    }

    func methodTwo() {
        // no @objc required here either!
    }

}

answered Aug 12 '19 at 16:16

h.and.h

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Swift method not visible in objective C

2 Answers2