unity3d与Object-C交互

using UnityEngine;
using System.Collections;
using System.Runtime.InteropServices;

public class testFeil : MonoBehaviour {
    
    [DllImport("__Internal")]
    private static extern void c_ctest();
    
    void Start () {
    }
    void Update () {
    }
    
    void OnGUI()  
    {  
        //开始按钮  创建了一个按钮。  
        if(GUI.Button(new Rect(20,100,200,50),"qingyun "))  
        {  
             c_ctest();  
        }      
    } 
    // 这个是C#里的一个回调。OC处理完成后 调用Unity方法
    void testFaildResult (string msg)
    {
        Debug.Log("testResult:" +msg);
    }
    //这个是C#里的一个回调。这里的作用就是OC里的回调函数。
    void testSuccessResult (string msg)
    {
        Debug.Log ("btnPressSuccess:"+msg);
    }
}

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
@protocol  MeiyuPushSdkDelegate;

@interface MeiyuPushSdk : NSObject

@property (nonatomic, assign)id<MeiyuPushSdkDelegate> delegate;

//初始化
+(MeiyuPushSdk*)my_initPush;

+ (void)my_setupWithOption:(NSDictionary *)launchingOption registerForRemoteNotificationTypes:(int)types ;      // 注册APNS类型
+ (void)my_registerDeviceToken:(NSData *)deviceToken;                                                           // 向服务器上传Device Token
+ (void)my_receiveRemoteNotification:(NSDictionary *)remoteInfo;                                                // 处理收到的APNS消息，向服务器上传收到APNS消息

-(void)cTest;
@end

@protocol MeiyuPushSdkDelegate <NSObject>
@optional
-(void)cTestResult;
@end

#import <Foundation/Foundation.h>

#ifdef __cplusplus
extern "C"
{
#endif
    void c_ctest();  
#ifdef __cplusplus
}
#endif

#import "MeiyuPushSdkC.h"
#import "MeiyuPushSdk.h"

@interface MeiyuPushSdkC : NSObject<MeiyuPushSdkDelegate>
@end

@implementation MeiyuPushSdkC

- (id)init
{
    id object = [super init];
    [[MeiyuPushSdk my_initPush]setDelegate:self];
    NSLog(@"initMeiyuPushSdkC");
    return object;
}

-(void)cTestResult
{
    UnitySendMessage("Main Camera", "testSuceessResult", "成功");
}
@end

MeiyuPushSdkC *m_pushSdk = NULL;
#if defined (__cplusplus)
extern "C"
{
#endif
    void c_ctest()
    {
        if(m_pushSdk == NULL)
        {
            m_pushSdk = [[MeiyuPushSdkC alloc]init];
        }
        MeiyuPushSdk *m = [MeiyuPushSdk my_initPush];

        [m cTest];

        UnitySendMessage("Main Camera", "testFaildResult", "接口调用失败");
    }
    
#if defined (__cplusplus)
}
#endif