Unity3D与iOS的交互 简单版开箱即用

本文适合的情况如下：

Unity客户端人员 与 IOS端研发人员合作的情况

目录

From U3D to iOS

实现原理

1.unity工程目录创建2个文件 NativeCallProxy.m、NativeCallProxy.h 并且放到Unity工程目录Plugins/iOS/unity_ios_plus目录下

2.创建C#调用脚本 定义对应.mm脚本的 调用接口，调用也如下

---

From U3D to iOS

实现原理

由于U3D无法直接调用Objc或者Swift语言声明的接口，幸好U3D的主要语言是C#，因此可以利用C#的特性来访问C语言所定义的接口，然后再通过C接口再调用ObjC的代码（对于Swift代码则还需要使用OC桥接）。

下面演示：利用C#的特性来访问C语言所定义的接口，然后再通过C接口再调用ObjC的代码

1.unity工程目录创建2个文件 NativeCallProxy.m、NativeCallProxy.h 并且放到Unity工程目录Plugins/iOS/unity_ios_plus目录下

 NativeCallProxy.m代码内容：

#import <Foundation/Foundation.h>
#import "NativeCallProxy.h"//固定写法
@implementation FrameworkLibAPIid<NativeCallsProtocol> api = NULL;
+(void) registerAPIforNativeCalls:(id<NativeCallsProtocol>) aApi
{api = aApi;
}
//固定写法结束
@end//固定写法
extern "C" {
//void showHostMainWindow(const char* color) { return [api showHostMainWindow:[NSString stringWithUTF8String:color]]; };//返回字符串的1个函数
const char*  unityCallGetInitData(){NSString* str=[api unityCallGetInitData];char* ret = nullptr;
//    ret = (char*)malloc([str length]+1);
//    memcpy(ret, [str UTF8String], ([str length])+1);ret = (char*)malloc([str length]);memcpy(ret, [str UTF8String], [str length]);return ret;    
};//无返回的1个函数
void unityCallJumpLogin(){return  [api unityCallJumpLogin];
};//无返回、传入字符串的函数
void unityCallJumpToRecharge(const char* gameStatus,const char* receOBName,const char* methodName){return [api unityCallJumpToRecharge:[NSString stringWithUTF8String:gameStatus] :[NSString stringWithUTF8String:receOBName] :[NSString stringWithUTF8String:methodName]];};void unityCallCloseVC(){return [api unityCallCloseVC];
};//隱私按鈕
void onPrivacyButton(){return [api onPrivacyButton];
}//儲值按鈕
const char* storedValue(){NSString* str=[api storedValue];char* ret = nullptr; ret = (char*)malloc([str length]);memcpy(ret, [str UTF8String], [str length]);return ret;
}//切换游戏
const char* ChangeGame(){NSString* str=[api ChangeGame];char* ret = nullptr;ret = (char*)malloc([str length]);memcpy(ret, [str UTF8String], [str length]);return ret;}}//extern "C" {
//
//}

NativeCallProxy.h代码内容

// [!] important set UnityFramework in Target Membership for this file
// [!]           and set Public header visibility//固定写法
#import <Foundation/Foundation.h>
// NativeCallsProtocol defines protocol with methods you want to be called from managed
@protocol NativeCallsProtocol
@required// other methods 自定义方法
/**获取初始json数据:baseUrl、mac_id、gameType、jwt 【对应mm文件的自定义函数名】*/
-(NSString*)unityCallGetInitData;
/**重新登录	【对应mm文件的自定义函数名的接口】*/
-(void)unityCallJumpLogin;
/**跳充值页前保存数据，充值页返回后把保存的数据发信息给unity 【对应mm文件的自定义函数名的接口】*/
-(void)unityCallJumpToRecharge:(NSString*) gameStatus :(NSString*) receOBName :(NSString*) methodName;//ios——关闭vc 【对应mm文件的自定义函数名的接口】
-(void)unityCallCloseVC;//隱私按鈕 【对应mm文件的自定义函数名的接口】
-(void)onPrivacyButton;//储值按钮 【对应mm文件的自定义函数名的接口】
-(NSString*)storedValue;//ch Game 【对应mm文件的自定义函数名的接口】
-(NSString*)ChangeGame;//自定义方法结束
@end//以下为固定写法
__attribute__ ((visibility("default")))
@interface FrameworkLibAPI : NSObject
// call it any time after UnityFrameworkLoad to set object implementing NativeCallsProtocol methods
+(void) registerAPIforNativeCalls:(id<NativeCallsProtocol>) aApi;@end

勾选iOS平台

2.创建C#调用脚本 定义对应.mm脚本的 调用接口，调用也如下

using System;
using System.Collections;
using System.Collections.Generic;
using LitJson;
using UnityEngine;
using UnityEngine.UI;
using System.Runtime.InteropServices;
using UnityEngine.SceneManagement; //引入  这个命名空间，让unity可以使用 Assets/Plugins/iOS 或 Android/ 这里的dll文件/// <summary>
/// 呼叫安卓或 IOS 工具类
/// </summary>
public class CallAndroidOrIos :MonoBehaviour
{public static CallAndroidOrIos instance;private void Awake(){instance = this;}#region  关于IOS的操作/// <summary>/// 模拟 安卓或iOS ,DLL的类；/// </summary>public class NativeAPI{#if UNITY_EDITOR || UNITY_ANDROID/// <summary>/// 获取 IOS返回的 json数据 ：baseUrl、mac_id、gameType、jwt/// </summary> public static string unityCallGetInitData(){return "";}/// <summary>/// 让IOS 呼叫重新登录/// </summary>/// <returns></returns>public static void unityCallJumpLogin(){Debug.Log("呼叫 ios重新登录");}/// <summary>/// IOS充值的返回 /// </summary> public static void unityCallJumpToRecharge(string gameStatus, stringreceOBName, string methodName){}/// <summary>/// 关闭当前 IOS活动页/// </summary>public static  void unityCallCloseVC(){}/// <summary>/// 隐私按钮/// </summary>public static void onPrivacyButton(){}/// <summary>/// 储值被点击/// </summary>public static string storedValue(){return "";}/// <summary>/// 切换G/// </summary>/// <returns></returns>public static string ChangeGame(){return "";}#elif UNITY_IOS || UNITY_TVOS //定义对应.mm脚本的 调用接口-----------[DllImport("__Internal")]public static extern string unityCallGetInitData();[DllImport("__Internal")]public static extern void unityCallJumpLogin();[DllImport("__Internal")]public static extern void unityCallJumpToRecharge(string gameStatus, stringreceOBName, string methodName);[DllImport("__Internal")]public static extern void unityCallCloseVC();[DllImport("__Internal")]public static extern void onPrivacyButton();[DllImport("__Internal")]public static extern string storedValue();[DllImport("__Internal")]public static extern string ChangeGame();
#endif}#endregion/// <summary>/// 被安卓调用过来的 统一函数名称  Public void Give_AnCall(string value)/// </summary>public const string Give_AnCall = "Give_AnCall";/// <summary>/// 当处于同一个物体的时候；用来区分函数名称/// </summary>public const string Give_AnCall2 = "Give_AnCall2";/// <summary>/// 关闭app当前页面/// </summary>public void unityCallCloseActivity(){if (Application.platform ==RuntimePlatform.IPhonePlayer|| Application.platform==RuntimePlatform.OSXEditor){Debug.Log("IOS 关闭当前Activity----------");NativeAPI.unityCallCloseVC();//关闭Ios 活动页}else{Debug.Log("关闭当前Activity----------");AndroidJavaClass activityClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer");//只能调用静态AndroidJavaObject  s_ActivityContext = activityClass.GetStatic<AndroidJavaObject>("currentActivity");//可以调用非静态s_ActivityContext.Call("unityCallCloseActivity");//关闭页面 }}/// <summary>/// 获取 玩家进入哪个游戏类型 [ 0是推币机 1是连连看 -1是未知类型]/// 并且获取到 baseURL mac_id jwt gameType/// </summary> public IEnumerator unityCallGetInitData(Action<JsonData,string> callBack){int Time = 0;string strData="";string Tips="";try{if (Application.platform ==RuntimePlatform.IPhonePlayer){strData = NativeAPI.unityCallGetInitData();}else{AndroidJavaClass activityClass;AndroidJavaObject s_ActivityContext;activityClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer"); //只能调用静态s_ActivityContext = activityClass.GetStatic<AndroidJavaObject>("currentActivity"); //可以调用非静态strData = s_ActivityContext.Call<string>("unityCallGetInitData");}}catch (Exception e){Tips = "Error:" + e;if (callBack != null){callBack(null, Tips);}//跳出协程的执行yield break;}while (string.IsNullOrEmpty(strData))//等待回调{yield return new WaitForSeconds(1);Time++;if (Time >= 10){break; //跳出循环}}//还是没有 收到安卓返回数据  if (string.IsNullOrEmpty(strData)){if (callBack!=null){Tips = "Get the Android Or IOS data timeout";//获取安卓数据超时callBack(null, Tips);} }else{JsonData jsonData = JsonMapper.ToObject(strData);if (callBack!=null){callBack(jsonData, "successful"); }}}/// <summary>/// 跳转到 充值界面 (1.当前游戏场景名称 ，2.物体名称 ，3.安卓返回参数到 哪个函数接收) /// </summary> public void unityCallJumpToRecharge(string ScreenName, string receOBName, string methodName){if (Application.platform ==RuntimePlatform.IPhonePlayer){NativeAPI.unityCallJumpToRecharge(ScreenName,receOBName,methodName);//跳转到 充值}else{Debug.Log("呼叫 安卓跳转充值！----------------");AndroidJavaClass activityClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer");//只能调用静态AndroidJavaObject  s_ActivityContext = activityClass.GetStatic<AndroidJavaObject>("currentActivity");//可以调用非静态s_ActivityContext.Call("unityCallJumpToRecharge",ScreenName,receOBName,methodName); }}/// <summary>/// 跳转到 重新登录界面/// </summary>public void unityCallJumpLogin(){if (Application.platform ==RuntimePlatform.IPhonePlayer){NativeAPI.unityCallJumpLogin();//IOS 进入 重新登录页面}else{Debug.Log("跳转到重新登录的Activity--------------");AndroidJavaClass activityClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer");//只能调用静态AndroidJavaObject  s_ActivityContext = activityClass.GetStatic<AndroidJavaObject>("currentActivity");//可以调用非静态s_ActivityContext.Call("unityCallJumpLogin");activityClass = null;s_ActivityContext = null;}}/// <summary>/// 显示UnityLog到 安卓调试窗/// </summary>public void unityCallPrintLog(string log){if (Application.platform ==RuntimePlatform.IPhonePlayer){//TODO }else{AndroidJavaClass activityClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer");//只能调用静态AndroidJavaObject  s_ActivityContext = activityClass.GetStatic<AndroidJavaObject>("currentActivity");//可以调用非静态s_ActivityContext.Call("unityCallPrintLog",log);}}/// <summary> 打开隐私按钮 </summary>public void onPrivacyButton(){if (Application.platform ==RuntimePlatform.IPhonePlayer){NativeAPI.onPrivacyButton();}else{Debug.Log("打开隐私按钮");}}/// <summary> 打开储值 </summary>public void storedValue(){if (Application.platform == RuntimePlatform.IPhonePlayer){Debug.Log("ios打开储值:"+NativeAPI.storedValue()); }else{Debug.Log("打开储值按钮");if (Application.platform == RuntimePlatform.WindowsEditor){//LogoGM.instance.HeroInfo_PlayCount(5);//默认给+5个//LogoGM.instance.HeroInfoSave();//PC端 增加可玩次数保存}}}/// <summary> 查询是否切换游戏 </summary>/// <returns></returns>public string ChangeGame(){if (Application.platform == RuntimePlatform.IPhonePlayer){return "IOS查询是否切换" + NativeAPI.ChangeGame();}else{return "PC查询游戏切换";}}/// <summary>/// IOS调用Unity的方法：UnitySendMessage("物体名", "函数名", "回调字符串");/// </summary>/// <param name="msg"></param>public void ReceIosMsg(string msg){Debug.Log("IOS 回调的信息");/*//根据游戏的场景划分 确定回调逻辑int scenceId = SceneManager.GetActiveScene().buildIndex;if (string.IsNullOrEmpty(msg)){Debug.Log(scenceId+"场景 收到IOS消息为空字符");}else{string strType;string strCode;//字符串转json对象JsonData jsonData = JsonMapper.ToObject(msg);switch (scenceId){case 0://场景0try{strType = jsonData["type"].ToString();strCode = jsonData["str"].ToString();if (strType=="ChuShiHua"){int code = int.Parse(strCode);if (code==0)//非游戏 静止在这个界面{Debug.Log(scenceId+"场景收到非游戏Code,等待跳转");//SetOrientationPortrait();//设置为竖屏mSpr.gameObject.SetActive(false);TestUpsideDown(1);}else{Debug.Log("正常游戏");toMenu();}}else{Debug.Log(scenceId+"场景 收到的不是初始化字段:"+strType);}}catch (Exception e){Debug.LogError(string.Format("{0} 场景 解析数据出错 原数据:{1}",scenceId,msg));}break;case 1://场景1try{strType = jsonData["type"].ToString();strCode = jsonData["str"].ToString();if (strType == "APPStore_Scuess"){//TODO 储值成功 添加可玩次数Debug.Log("储值成功");HeroInfo_PlayCount(9999);HeroInfoSave();//场景1的储值}else{Debug.Log(scenceId+"场景 收到的不是储值字段:"+strType);}}catch (Exception e){Debug.LogError(string.Format("{0} 场景 解析数据出错 原数据:{1}",scenceId,msg));}break;}}*/}
}