I want to use objective C code in swift. Once I add a bridging header I start getting errors for all primitive data types

Question

I have a model

@interface Section : NSObject
@property (nonatomic, strong) NSString *sectionId;
@property (nonatomic, strong) NSString *title;

+(instancetype)createObject:(NSDictionary *)sectionInfo;    
@end

My bridging header looks like this

// MyProj-Bridging-Header.h    

#ifndef MyProj_Bridging_Header_h
#define MyProj_Bridging_Header_h

#import "Section.h"

#endif /* MyProj_Bridging_Header_h */

My Swift controller looks like this

@objc class SampleSwiftVC : UIViewController {
    var supportedSectionInfo: Section?
}

I start getting compile time errors like

/*PathToProject*/Section.h:17:39: error: expected a type
+(instancetype)createObject:(NSDictionary *)sectionInfo;
                                  ^
<unknown>:0: error: failed to import bridging header '/*PathToProject*/MyProj-Bridging-Header.h'

I went over to the build settings and found that the header file reference is set for the Objective-C Bridging header key

See this : http://stackoverflow.com/questions/24002369/how-to-call-objective-c-code-from-swift — Piyush, Dec 28 '16 at 09:40
@PiyushPatel, thank you for the link but this does not seem to help my cause. — iosCurator, Dec 28 '16 at 09:52
@iosCurator For example try to replace instancetype with id in createObject method signature. — Roman Podymov, Dec 28 '16 at 09:56
I tried your suggestion @Roman Podymov, but did not help. I am still getting unknown type for NSString. — iosCurator, Dec 28 '16 at 10:01

score 0 · Answer 1 · answered Dec 28 '16 at 10:11

I found the issue. The problem was that the ObjectiveC model was inherited from the NSObject.h. This was the actual problem because the Foundation class was not imported. Adding

#import <Foundation/Foundation.h>

before

@interface Section : NSObject

solved the issue

I want to use objective C code in swift. Once I add a bridging header I start getting errors for all primitive data types

1 Answers1