1. 建立一个C++类
2. 写一个Adaptor的Objective-C类
3. 在其他Objective-C的逻辑中调用Adaptor类。
1.C++类
//
// CPlusPlusClass.h
// OBJ_C++
//
// Created by Txtw on 13-7-2.
// Copyright (c) 2013年 Txtw. All rights reserved.
//#ifndef __OBJ_C____CPlusPlusClass__
#define __OBJ_C____CPlusPlusClass__#include <iostream>class CPlusPlusClass {
public:
CPlusPlusClass();
virtual ~CPlusPlusClass();
void func();
void setInt (int i) {
m_i = i;
}private:
int m_i;
};#endif /* defined(__OBJ_C____CPlusPlusClass__) */
//
// CPlusPlusClass.cpp
// OBJ_C++
//
// Created by Txtw on 13-7-2.
// Copyright (c) 2013年 Txtw. All rights reserved.
//#include "CPlusPlusClass.h"CPlusPlusClass::CPlusPlusClass() : m_i()
{
printf("CPlusPlusClass::CPlusPlusClass()\n");
func();
}CPlusPlusClass::~CPlusPlusClass()
{
printf("CPlusPlusClass::~CPlusPlusClass()\n");
}void CPlusPlusClass::func() {
printf("CPlusPlusClass func print: %d\n", m_i);
}
2. Adaptor类
//
// ObjectiveCAdaptor.h
// OBJ_C++
//
// Created by Txtw on 13-7-2.
// Copyright (c) 2013年 Txtw. All rights reserved.
//#import <Foundation/Foundation.h>class CPlusPlusClass; //这个声明得小心,千万不要写成@class,兄弟我搞了半宿才找到这个错误。呵呵,见笑,见笑。@interface ObjectiveCAdaptor : NSObject {
@private
CPlusPlusClass *testObj;
}- (void) objectiveFunc;
@end
在Build Settings中把编译器的Compile Sources As选项改为Objective C++。否则编译器找不到C++类。
//
// ObjectiveCAdaptor.m
// OBJ_C++
//
// Created by Txtw on 13-7-2.
// Copyright (c) 2013年 Txtw. All rights reserved.
//#import "ObjectiveCAdaptor.h"
#include "CPlusPlusClass.h"@implementation ObjectiveCAdaptor- (id) init {
if (self = [super init]) {
testObj = new CPlusPlusClass();
} return self;
}- (void) dealloc {
if (testObj != NULL) {
delete testObj;
testObj = NULL;
}
[super dealloc];
}- (void) objectiveFunc
{
testObj->setInt();
testObj->func();
}@end
3.调用
//调用示例:
- (void) callObjectiveCAdaptorMethod
{
ObjectiveCAdaptor *testObjectiveCObj = [[ObjectiveCAdaptor alloc] init];
[testObjectiveCObj objectiveFunc];
[testObjectiveCObj release];
}
from:http://www.cnblogs.com/biosli/archive/2011/04/30/Mixing_ObjectiveC_and_Cplusplus_in_iPhone_Development.html
参考:http://www.cocoachina.com/bbs/read.php?tid-9111-fpage-3.html
http://blog.csdn.net/horkychen/article/details/7935910
调用C
1.创建.h, .m文件
2.#import “testC.h” 直接调用方法
testC.h如下:
int hello(int i,int j);
testC.m如下:
int hello(int i,int j){
return i+j;
}