总体流程如下：

一.下载Unity无黑Logo版本和工具，不用工具的有黑logo（各端一定要统一啊）

Unity版本:Unity 2022.1.24 unity.com/releases/ed...

无黑LogoPatch下载地址：github.com/tylearymf/U...

二.代码交互相关：

iOS

1.UnitySendMessage代码是这样的：

// objectName: Unity 对象的名称 // methodName: Unity 对象绑定的脚本方法名 // message: 自定义消息 UnityPlayer.UnitySendMessage(String objectName, String methodName, String message); 该方法有一个弊端，就是发送消息的方法对应的类，必须要挂载在一个 game object 上。该方法有一点需要注意，就是在原生触发回调接口的时候，可能跟 Unity 的主线程并不是一个线程，此时需要通知 Unity 主线程执行回调。

所以拒绝使用此方法。以下介绍通过 C# 同名方法反射

2.举个例子：

（1）unity工程 .cs代码

// DllImport这个方法相当于是告诉Unity，有一个CallObjCFunc函数在外部会实现。 // 使用这个方法必须要导入System.Runtime.InteropServices; [DllImport("__Internal")] private static extern void takePhotosFromNative(string dictionaryJson); public override void takePhotosFromNative(string dictionaryJson) { #if UNITY_IOS IosNativeAPI.takePhotosFromNative(dictionaryJson); #endif }

每一个方法都要接入[DllImport("__Internal")]

（2）unity工程 .mm代码

对应的takePhotosFromNative在oc层 //拍照之后返回小屋 void takePhotosFromNative(const char*dictionaryJson) { return [api takePhotosFromNative:[NSString stringWithUTF8String:dictionaryJson]]; }

一定要注意这个 stringWithUTF8String

传入string时候如果传入NSString直接崩溃。 //strdup函数需要引入#import <string.h> return strdup([@"abc" UTF8String]) //要调用strdup()函数分配c内存再返回给unity,不然闪退

（3）另一个原生xcode工程的使用：

//拍照之后返回小屋

(void)takePhotosFromNative:(NSString*)dictionaryJson {

NSDictionary *dic = [NSString dictionaryWithJsonString:dictionaryJson];

embed_frameworks_build_phase = target.build_phases.find { |bp| bp.is_a?(Xcodeproj::Project::Object::PBXCopyFilesBuildPhase) && bp.symbol_dst_subfolder_spec == :frameworks }

如果没有找到嵌入的构建阶段，就创建一个

unless embed_frameworks_build_phase

embed_frameworks_build_phase = project.new(Xcodeproj::Project::Object::PBXCopyFilesBuildPhase)

embed_frameworks_build_phase.name = 'Embed Frameworks'

embed_frameworks_build_phase.symbol_dst_subfolder_spec = :frameworks

target.build_phases << embed_frameworks_build_phase

end

添加文件引用到那个构建阶段

build_file = embed_frameworks_build_phase.add_file_reference(framework_reference)

build_file.settings = { 'ATTRIBUTES' => attributes }

将改动保存到Xcode项目文件

project.save

puts ' ---- 最后一步，替换Framework成功 ---- '

以上运行到了原生工程中，接下来是原生代码中具体使用。

1.封装中间类

JCSUnityManager.h代码

`#import <Foundation/Foundation.h> #include <UnityFramework/UnityFramework.h> #include <UnityFramework/NativeCallProxy.h>

NS_ASSUME_NONNULL_BEGIN

@interface JCSUnityManager : UIResponder<UIApplicationDelegate,UnityFrameworkListener,NativeCallsProtocol>

(instancetype _Nullable )shareInstance; -(void) setLaunchConfigs:(UIWindow *)utWindow launchOptions:(NSDictionary *)options; -(void)firstTimePrepareUnity:(void(^)(BOOL completed))completion; -(void) prepareUnity:(void(^)(BOOL completed))completion; -(void) pauseUnity:(BOOL)paused; -(void) hideUnity; -(void) quitUnity:(void(^)())completion; -(void) unloadUnity;

(bool)unityIsInitialized; -(void) sendMessage:(NSString *)clsName Method:(NSString *)method Message:(NSString *)message; -(UIViewController *) getUnityRootViewController; -(UIView *) getUnityView; @property (nonatomic, strong) UnityFramework *unityFwk; @property(nonatomic, assign) BOOL isLogoutFlag; //获取token，userid，homeuserid

(const char*)GetAppHeaderFromNative; //拍照之后返回小屋

(void)takePhotosFromNative:(NSString*)dictionaryJson; //返回挂起unity

(void)goBackPendingFromNative; //返回杀死unity

(void)goBackKillFromNative; //登陆

(void)loginFromNative;

@end

NS_ASSUME_NONNULL_END`

JCSUnityManager.m代码

`#import "JCSUnityManager.h" #import "AppDelegate.h" #import "AppDelegate+Event.h" #import "JRLoginViewModel.h" #import "JCSUpLoadAvatarViewController.h" #import "NSString+Help.h"

@interface JCSUnityManager()

@property(nonatomic,strong) UIWindow *hostWindow; @property(nonatomic,strong) NSDictionary *launchOpts;

@property (nonatomic, strong) JRLoginViewModel *viewModel; @end

@implementation JCSUnityManager

/** 单例 */

(instancetype)shareInstance{ static JCSUnityManager *instance = nil; static dispatch_once_t onceToken; _dispatch_once(&onceToken, ^{ instance = [[JCSUnityManager alloc] init]; }); return instance; }

-(void)setLaunchConfigs:(UIWindow *)utWindow launchOptions:(NSDictionary *)options { self.hostWindow = utWindow; self.launchOpts = options; }

(bool)unityIsInitialized { // 判斷是否已經初始化過Unity執行環境 return self.unityFwk && [self.unityFwk appController]; }

(void)initUnity:(void(^)(BOOL completed))completion { // 初始化Unity執行環境 if([self unityIsInitialized]) { completion(true); return; }

self.unityFwk = [self loadUnityFramework]; [self.unityFwk setDataBundleId:"com.unity3d.framework"]; [self.unityFwk registerFrameworkListener:self]; [NSClassFromString(@"FrameworkLibAPI") registerAPIforNativeCalls:self];

// 取得APP執行參數 NSArray *arguments = [[NSProcessInfo processInfo] arguments]; int argc = (int)arguments.count;
$self.unityFwk runEmbeddedWithArgc:argc argv:\[self getChar:arguments\] appLaunchOpts: self.launchOpts\]; completion(true); }$

-(UIView *)getUnityView { return [self getUnityRootViewController].view; }

-(void)firstTimePrepareUnity:(void(^)(BOOL completed))completion { // 準備Unity執行環境並執行 if (![self unityIsInitialized]) { [self initUnity:^(BOOL completed) { if (completed) { dispatch_async(dispatch_get_main_queue(), ^{ completion(true); }); } }]; } else { dispatch_async(dispatch_get_main_queue(), ^{ completion(true); }); } }

-(void) prepareUnity:(void(^)(BOOL))completion { // 準備Unity執行環境並執行 if (![self unityIsInitialized]) { [self initUnity:^(BOOL completed) { if (completed) { [self.unityFwk showUnityWindow]; dispatch_async(dispatch_get_main_queue(), ^{ completion(true); }); } }]; } else {
scss 复制代码
    [self.unityFwk showUnityWindow];
                
    dispatch_async(dispatch_get_main_queue(), ^{
        completion(true);
    });
}
}

-(void) sendMessage:(NSString *)clsName Method:(NSString *)method Message:(NSString *)message { [self.unityFwk sendMessageToGOWithName:clsName.UTF8String functionName:method.UTF8String message:message.UTF8String]; }

-(void) hideUnity { if (self.hostWindow != nil) { [self.hostWindow makeKeyAndVisible]; } }

-(void) pauseUnity:(BOOL)paused { if (self.unityFwk != nil) { [self.unityFwk pause:paused]; } }

-(void) quitUnity:(void(^)())completion { if ([self unityIsInitialized]) { [self.unityFwk appController].quitHandler = ^{ NSLog(@"AppController.quitHandler called"); dispatch_async(dispatch_get_main_queue(), ^{ completion(); }); }; [self.unityFwk quitApplication:0]; } }

(void) unloadUnity { if ([self unityIsInitialized]) { [self.unityFwk unloadApplication]; } }

#pragma mark - 清掉Listener

(void)unityDidUnload:(NSNotification*)notification { NSLog(@"unityDidUnloaded called"); if (self.hostWindow != nil) { [self.hostWindow makeKeyAndVisible]; } [self.unityFwk unregisterFrameworkListener:self]; self.unityFwk = nil;

if(self.isLogoutFlag) { [JCSCommonTool clearLocalData]; self.isLogoutFlag = NO; }

// [self setUnityFwk: nil]; }

(void)unityDidQuit:(NSNotification *)notification { NSLog(@"========== %s ============",func);

if (self.hostWindow != nil) { [self.hostWindow makeKeyAndVisible]; } }

(UnityFramework *) loadUnityFramework { // 載入UnityFramework

NSString* bundlePath = nil; bundlePath = [[NSBundle mainBundle] bundlePath]; bundlePath = [bundlePath stringByAppendingString:@"/Frameworks/UnityFramework.framework"];

NSBundle* bundle = [NSBundle bundleWithPath: bundlePath]; if ([bundle isLoaded] == false) [bundle load];

UnityFramework* ufw = [bundle.principalClass getInstance]; if (![ufw appController]) { // unity is not initialized [ufw setExecuteHeader: &_mh_execute_header]; } return ufw; }

(char**)getChar:(NSArray *) a_array{ NSUInteger count = [a_array count]; char **array = (char *)malloc((count + 1) * sizeof(char));

for (unsigned i = 0; i < count; i++) { array[i] = strdup([[a_array objectAtIndex:i] UTF8String]); } array[count] = NULL; return array; }

(void)applicationWillResignActive:(UIApplication *)application { [[[JCSUnityManager shareInstance].unityFwk appController] applicationWillResignActive: application]; }

(void)applicationDidEnterBackground:(UIApplication *)application { [[[JCSUnityManager shareInstance].unityFwk appController]applicationDidEnterBackground: application]; }

(void)applicationWillEnterForeground:(UIApplication *)application { [[[JCSUnityManager shareInstance].unityFwk appController] applicationWillEnterForeground: application]; }

(void)applicationDidBecomeActive:(UIApplication *)application { [[[JCSUnityManager shareInstance].unityFwk appController] applicationDidBecomeActive: application]; }

(void)applicationWillTerminate:(UIApplication *)application { [[[JCSUnityManager shareInstance].unityFwk appController] applicationWillTerminate: application]; }

#pragma mark - NativeCallsProtocol //获取token，userid，homeuserid

(const char*)GetAppHeaderFromNative { self.isLogoutFlag = NO; NSMutableDictionary *dictionary = [[NSMutableDictionary alloc]init];

// token NSString *authorization = [JRAccountManager authorization]; [dictionary setValue:authorization forKey:@"Authorization"];
$dictionary setValue:\[JRAccountManager memberId\] forKey:@"userId"\]; NSString \*roomHostId = \[JCSCommonTool getUnityCurrentUserId\]; if(roomHostId \&\& !\[roomHostId isEqualToString:\[JRAccountManager memberId\]\]) { \[dictionary setValue:roomHostId forKey:@"roomHostId"\]; } else { \[dictionary setValue:\[JRAccountManager memberId\] forKey:@"roomHostId"\]; } NSString \*str = \[JRAPIManager hostUrl\]; \[dictionary setValue:str forKey:@"hostUrl"\]; NSLog(@"dictionary==%@",dictionary); NSError \*error; NSData \*jsonData = \[NSJSONSerialization dataWithJSONObject:dictionary options:0 error:\&error\]; NSString \*dicString = \[\[NSString alloc\] initWithData:jsonData encoding:NSUTF8StringEncoding\]; const char \*temp11 = \[dicString UTF8String\]; // \[\[self ufw\] sendMessageToGOWithName: "Cube" functionName: "ReceiveHeaderDictionaryFromiOS" message: temp11\]; return temp11; }$

(void)takePhotosFromNative:(NSString*)dictionaryJson { // NSLog(@"拍照%@",dictionaryJson); NSDictionary *dic = [NSString dictionaryWithJsonString:dictionaryJson]; // NSMutableDictionary *muDic = [[NSMutableDictionary alloc]initWithDictionary:dic]; // NSLog(@"拍照dic%@",dic); // [self pauseUnity:YES]; [self hideUnity]; JCSUpLoadAvatarViewController *vc = [[JCSUpLoadAvatarViewController alloc]init]; vc.pageFromWhere = UploadAvatarPageFromUnityPoster; vc.posterDic = dic; [[UIViewController topmostViewController].navigationController pushViewController:vc animated:YES]; self.isLogoutFlag = NO;

}

//返回挂起unity

(void)goBackPendingFromNative { self.isLogoutFlag = NO;

}

//返回杀死unity

(void)goBackKillFromNative { // [self quitUnity:^{ // NSLog(@"%@",self.unityFwk); // }]; [self unloadUnity]; self.isLogoutFlag = NO; // [self hideUnity]; }

//登陆

(void)loginFromNative { NSLog(@"登录");
$self unloadUnity\]; self.isLogoutFlag = YES;$

2.appdelegate预加载unity：（避免黑屏或者闪屏等待时间过长，需要unity退出时销毁干净场景的全局资源）

\[JCSUnityManager shareInstance\]firstTimePrepareUnity:\^(BOOL completed) { \[\[JCSUnityManager shareInstance\] unloadUnity\]; }\]; \[\[JCSUnityManager shareInstance\]setLaunchConfigs:self.window launchOptions:launchOptions\]; ### Android **1、下载和解压项目** 这个项目里有一个跟安卓原生应用一起工作的UnityPlayerActivity的扩展，叫OverrideUnityActivity。这个Unity项目会被我们嵌入到Android Studio的一个基础的应用模板中，它就像任何一个带用户界面的Android应用那样，通过Intent的方式启动Unity部分。 我们提供的原生Android项目是来自Android Studio模板的Basic Activity应用程序，我们会把前面的Unity项目加入到这里。该项目有UI和MainUnityActivity来扩展OverrideUnityActivity，可以使用Intent启动MainUnityActivity。 2. 把Unity项目和原生Android项目解压到同一个文件夹里使得后续操作更简单。 ![image](https://file.jishuzhan.net/article/1777229653509935105/cc7ccc1108cea8e9ffbf9be44588001b.webp) **2、生成Android平台的Gradle项目** 在Unity中打开这个项目，导航到"Build Settings"，切换到安卓平台并且勾选"Export Project"来导出项目。 ![image](https://file.jishuzhan.net/article/1777229653509935105/8029decf96164062ae36464e6b64718b.webp) 当Unity项目导出之后，你会得到包含了unityLibrary模块的androidBuild文件夹。。 ![image](https://file.jishuzhan.net/article/1777229653509935105/f09a1d2a7063a0b956d19a0ae13aacb4.webp) 3、把Unity Library模块添加到NativeAndroidApp 现在你要做的是，将unityLibrary模块添加到你的原生Android项目中去。你可以通过修改Android Studio项目的settings.gradle文件来实现，只需在文件最后添加上一行代码来包含unityLibrary ```php 复制代码 include ':unityLibrary' project(':unityLibrary').projectDir=new File('..\UnityProject\androidBuild\unityLibrary') ``` ![image](https://file.jishuzhan.net/article/1777229653509935105/9d4f40dd2f9aca1c6aa95fa5a47f84a7.webp) 之后，更新app模块的build.gradle文件来声明对unityLibrary模块的依赖。 ```java 复制代码 implementation project(':unityLibrary') ``` ![image](https://file.jishuzhan.net/article/1777229653509935105/c66a1b046d0461b1326a5d60fe0a1591.webp) 打开build.gradle文件，把下面代码添加到allprojects{repositories{代码块。 ```bash 复制代码 flatDir { dirs "${project(':unityLibrary').projectDir}/libs" } ``` ![image](https://file.jishuzhan.net/article/1777229653509935105/2af7e8aac88a62b5e035b8d232fa111e.webp) Gradle文件已经修改，单击Sync Now。 ![image](https://file.jishuzhan.net/article/1777229653509935105/41f1743655b1994961495828a6517212.webp) 修改完后，同步Gradle，这样unityLibrary就被加入到项目中了。 ![image](https://file.jishuzhan.net/article/1777229653509935105/925e1ec74f20053ff9431c6570ab2a1a.webp) 1. 你现在可以尝试构建并运行应用了。如果一切顺利，应用应当能够正常启动和运行。 ![image](https://file.jishuzhan.net/article/1777229653509935105/6a3dc6d6684cdf4cc70ef1e05e4cf562.webp) 如果一切顺利，我们应该可以运行NativeAndroidApp。 ![image](https://file.jishuzhan.net/article/1777229653509935105/bbb6096fcd027ca23c0cb598bb8a03c5.webp) 请注意：在应用程序安装到设备后，会出现二个启动应用程序的图标，请把...从unityLibrary的AndroidManifest.xml去掉，仅保留集成版本。 当你完成集成并安装应用到你的设备之后，你可能会注意到有两个启动图标出现。这通常是因为unityLibrary模块的AndroidManifest.xml文件中定义了一个额外的启动器入口。你需要做的是，去掉这个多余的入口，只保留你的原生Android应用需要的那部分。这样做你的应用就只会有一个启动图标了。 另外，如果你在将Unity项目集成到原生Android应用的过程中遇到了任何难题，一个解决的办法是使用一个全面配置好的完整项目。你可以下载这个完整的项目文件包，解压后，在Android Studio中打开NativeAndroidApp。这个完整的项目已经设置好了所需的所有配置，并且可以直接构建和部署。这样就可以省去你手动整合的麻烦，特别是如果你是第一次尝试这样做或是对整个流程不是很熟悉的话。使用完整项目作为起点，可以帮助你更容易地理解整合过程，并且保证你有一个稳定的基础来进行后续的开发和调试。 ## 参考Unity完整项目地址： 请访问云盘下载示例项目 下载链接: [pan.baidu.com/s/1JFWjbrh2...](https://link.juejin.cn/?target=https%3A%2F%2Fpan.baidu.com%2Fs%2F1JFWjbrh2x-qAsCzMwLywLA "https://link.juejin.cn/?target=https%3A%2F%2Fpan.baidu.com%2Fs%2F1JFWjbrh2x-qAsCzMwLywLA")

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