Swift_混編

ViewController.swift

import UIKit
func oc_u_swift(){}

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        self.swift_OC();
        
    }

    
    //Swift 調用OC 
    func swift_OC(){
        
       let oc = OCClass()
       let i = oc.ocFunc()
        
    }
    
    
    
    func oc_u_swift(){
        
        let oc = OCClass()
        oc.oc_use_swift()
        
    }
    


}

OCClass.h

#import <Foundation/Foundation.h>

@interface OCClass : NSObject

-(int)ocFunc;
-(void)oc_use_swift;
@end

OCClass.m

#import "OCClass.h"
#import "Swift_OC_C混編-swift.h"
@implementation OCClass


-(instancetype)init{
    
    if (self = [super init]) {
        
        
        
        
    }
    
    return self;
    
}

/**
 swift 調用 OC 的函數
 1、只要在橋接頭文件  xxxx-Bridging-Header.h #import OC的頭文件可以
 */
-(int)ocFunc
{
   
    
    int (^p)(int, int);
    //把函數賦值給block
    p = ^(int a, int b){
        return a + b;
    };
    //使用
    int result = p(10,40);
    
    return result; //result = 50
}



/**
 OC 調用 swift
 1、#import "Swift_OC_C混編-swift.h" --->  Build Setting - "Product Module Name-swift.h"
 2、公開函數 func oc_u_swift(){}
 3、橋接頭文件只適合用於 swift調用OC，這裏只要正確引用頭文件就可以
 */
-(void)oc_use_swift
{
    ViewController *v = [[ViewController alloc]init];
    [v swift_OC];
}

GitHub地址:https://github.com/JasonChen02/Swift-OC_varandra https://github.com/JasonChen02/Swift-OC_varandra (第一次上傳到github,相互學習)