Xcode中Objective-C和C++混编的实现 (二)

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事例代码,代码主要只是为了说明Objective-C如何与C++混编调用原理,代码在写法上不是非常严谨,

1.封装类 .h

// CellCountObj.h

// Created by Mike on 15/11/11.

#import <Foundation/Foundation.h>

#include "HDCCountObj.h"

class HDCCountObj;

@interface CellCountObj : NSObject

{

@private HDCCountObj *hdcCountObjCell;

}

-(void) hdcCountFun;

@end

封装类 .mm

// CellCountObj.mm

// Created by Mike on 15/11/11.

#import "CellCountObj.h"

@implementation CellCountObj

- (id) init {

if (self = [super init]) {

hdcCountObjCell = new HDCCountObj();

}

return self;

}

- (void) dealloc {

if (hdcCountObjCell != NULL) {

delete hdcCountObjCell;

hdcCountObjCell = NULL;

}

// [super dealloc];

}

//开通外部接口,在函数内调用C++类函数

- (void) hdcCountFun

{

hdcCountObjCell->CountNumber(10); // <--C++类

}

@end

2.纯C++类 .h

// HDCCountObj.h

// Created by Mike on 15/11/11.

#ifndef ____HDCCountObj__

#define ____HDCCountObj__

#include <stdio.h>

class HDCCountObj

{

public:

HDCCountObj(void);

virtual ~HDCCountObj(void);

int CountNumber(int k);

int iCount;

};

#endif /* defined(____HDCCountObj__) */

2.纯C++类 .mm

// HDCCountObj.mm

// Created by Mike on 15/11/11.

//#include <stdio.h>

#include "HDCCountObj.h"

HDCCountObj::HDCCountObj(void)

{

}

HDCCountObj::~HDCCountObj(void)

{

}

int HDCCountObj::CountNumber(int k)

{

iCount = k*k;

return iCount;

}

3.ViewController.mm中调用

#import “CellCountObj.h"

//调用已经封装好的C++类

CellCountObj *cellhdcCountObj= [[CellCountObj alloc]init];

cellhdcCountObj hdcCountFun];// <—已经封装好的C++类

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