Swift class not conforming to Objective C Protocol - objective-c

Question

I have this objective c protocol as mentioned below:
#protocol Class1<NSObject>
- (void)searchBy:(Enum1)searchType;
#end
And i am trying to make a swift class conform to that protocol . The stub which Xcode generated for me is as follows:
func search(by searchType: Enum1) {
}
But Xcode gives me an error while building that the class still doesn’t conform to protocol. What am i missing here?

Answer 1

Do you have your Objective-C header that contains the protocol and enum in the bridging header for swift to find?
So I created a new test app, and the view controller looks as follows:
import UIKit
class ViewController: UIViewController, Class1
{
func search(by searchType: Enum1) {
print("it works")
}
override func viewDidLoad() {
super.viewDidLoad()
let class1 = self as Class1
class1.search(by: Enum1.PlayerStateOff)
}
}
And my objective-C bridging header looks like this:
//
// Use this file to import your target's public headers that you would like to expose to Swift.
//
#import "Foo.h"
And the ObjectiveC header Foo.h looks like this:
#import <Foundation/Foundation.h>
typedef NS_ENUM(NSInteger, Enum1) {
PlayerStateOff,
PlayerStatePlaying,
PlayerStatePaused
};
#protocol Class1<NSObject>
- (void)searchBy:(Enum1)searchType;
#end
#interface Foo : NSObject
#end
And it all compiles, runs, and prints "it works" just fine in Xcode 9.2. So it's probably your bridging header, but double-check everything you're doing against the above.