CODEWITHSUNDEEP
objective-cswift
Pallavi Konda
Pallavi Konda

Reputation: 1670

Unable to call swift function in objective C. Getting error interface decleration for NSObject

Am getting error while calling swift function in objective c file. I have created "-Swift.h" file.

I have created ".swift" file. My code here is

import Foundation
@objc class className : NSObject {
@objc func someFunc(sender: AnyObject) {
//Some code
}
}

I have created "-Swift.h" header file. My code here is

#ifndef ProjectName_Swift_h
#define ProjectName_Swift_h
#endif /* ProjectName_Swift_h */
@class className;
@interface className : NSObject
-(void)someFunc;
@end

In my objective C ".m" file am calling the swift function.

#import "XXX-Swift.h"

- (void)viewDidLoad
{
    [super viewDidLoad];
    className *obj = [[className alloc]init];
    [obj someFunc];
}

Now am getting error in "XXX-Swift.h" file.

ERROR: Cannot find interface declaration for 'NSObject', super class for 'className'.

Upvotes: 1

Views: 836

Answers (3)

Pallavi Konda
Pallavi Konda

Reputation: 1670

I found difference between manually creating -Bridging-header file and automatically Xcode generated -Bridging-header file. I have deleted the -Swift.h file and manually created -Bridging-header file. Added -Bridging-header(Xcode generated one) file. It automatically created -Swift.h file after successful build of project.

Upvotes: -1

Casey
Casey

Reputation: 6691

delete the file you created ending in -Swift.h, that file is auto-generated by Xcode.

you can view the Xcode generated version (after a successful build) if you command click #import "XXX-Swift.h"

if you go into your build settings and search for SWIFT_OBJC_INTERFACE_HEADER_NAME you can see the file name.

Upvotes: 3

vikash1307
vikash1307

Reputation: 272

you have to created Bridging header file and import you swift file there.

Use this link, it will help you

https://developer.apple.com/library/ios/documentation/Swift/Conceptual/BuildingCocoaApps/MixandMatch.html

Upvotes: 0

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