Swift calls C, C ++, Object-C, swift calls cobject-c

Source: Internet
Author: User

Swift calls C, C ++, Object-C, swift calls cobject-c

1. Swift calls C Language
A. First, add the CFile file named CHello in the project and generate a bridge file.

  

 

B. The project structure after creation is shown in:

 

B. Compile the interface method in CHello. h file, compile the implementation method in CHello. c, and introduce CHello. h In the SwiftCallC-Bridging-Header.h file.

CHello. h file

#ifndef __SwiftCallC__CHello__#define __SwiftCallC__CHello__#include <stdio.h>void sayHello();#endif /* defined(__SwiftCallC__CHello__) */

CHello. c file

#include "CHello.h"void sayHello(){    printf("hello\n");}

SwiftCallC-Bridging-Header.h files

#import "CHello.h"

 

2. Swift calls the OC Language
A. Similarly, add the object-c file named OCHello under the project. This is not required because file bridges have been created.

 

B. Compile the interface method in OCHello. h file, compile the implementation method in OCHello. c, and finally introduce the OCHello. h header file in the SwiftCallC-Bridging-Header.h file.

OCHello. h file

# Import <Foundation/Foundation. h> @ interface OCHello: NSObject // The method does not have parentheses. This is really not suitable --! -(Void) sayHello; @ end

OCHello. m file

#import "OCHello.h"@implementation OCHello-(void)sayHello{    NSLog(@"hello");}@end

SwiftCallC-Bridging-Header.h files

#import "CHello.h"#import "OCHello.h"

 

C. Finally, you can call Object-C in Swift code ~

import UIKitclass ViewController: UIViewController {    override func viewDidLoad() {        super.viewDidLoad()        // Do any additional setup after loading the view, typically from a nib.        var oc = OCHello()        oc.sayHello()    }    override func didReceiveMemoryWarning() {        super.didReceiveMemoryWarning()        // Dispose of any resources that can be recreated.    }}


3. Swift calls the C ++ Language
To call the c ++ code, you only need to change the original OCHello. change the m file to OCHello. mm, then you can reference the iostream header file in this file .... ^ The feel of c ++ instantly exists!
Finally, you can modify the implementation method slightly.

#import "OCHello.h"#include "iostream"using namespace std;@implementation OCHello-(void)sayHello{    cout<<"Hello"<<endl;}@end

 

Related Article

E-Commerce Solutions

Leverage the same tools powering the Alibaba Ecosystem

Learn more >

11.11 Big Sale for Cloud

Get Unbeatable Offers with up to 90% Off,Oct.24-Nov.13 (UTC+8)

Get It Now >

Alibaba Cloud Free Trial

Learn and experience the power of Alibaba Cloud with a free trial worth $300-1200 USD

Learn more >

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.