APP联合Unity3D实战

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];

[self hideUnity];

JCSUpLoadAvatarViewController *vc = [[JCSUpLoadAvatarViewController alloc]init];

vc.pageFromWhere = UploadAvatarPageFromUnityPoster;

vc.posterDic = dic;

[[UIViewController topmostViewController].navigationController pushViewController:vc animated:YES];

self.isLogoutFlag = NO;

}

具体代码:

开启unity工具

文件存放位置 Assets/Scripts/NativeBridge/NativeBridge.cs Assets/Plugins/Android Assets/Plugins/iOS 前面是cs代码,后面是android和iOS代码

交互方式:通过 C# 同名方法反射 Assets/Scripts/NativeBridge/NativeBridge.cs中的代码:

using System.Runtime.InteropServices; using UnityEngine;

public class NativeAPI { static CNativeAPI _nativeAPI = null; static CNativeAPI nativeAPI { get { if (_nativeAPI == null) { #if UNITY_IOS

_nativeAPI = new CNativeIOS(); #elif UNITY_ANDROID

_nativeAPI = new CNativeAndroid(); #else _nativeAPI = new CNativeOther(); #endif } return _nativeAPI; } }

csharp 复制代码
public static string GetAppHeaderFromNative()
{
    return nativeAPI.GetAppHeaderFromNative();
}

public static void takePhotosFromNative(string dictionaryJson)
{
    nativeAPI.takePhotosFromNative(dictionaryJson);
}

public static void goBackPendingFromNative()
{
    nativeAPI.goBackPendingFromNative();
}

public static void goBackKillFromNative()
{
    nativeAPI.goBackKillFromNative();
}

public static void loginFromNative()
{
    nativeAPI.loginFromNative();
}

public static void hiddenStartUnityLoading()
{
    nativeAPI.hiddenStartUnityLoading();
}

}

public abstract class CNativeAPI { //// 原生方法获取用户信息声明 public abstract string GetAppHeaderFromNative();

csharp 复制代码
// 调用相机
public abstract void takePhotosFromNative(string dictionaryJson);

// 返回挂起app
public abstract void goBackPendingFromNative();

// 返回杀死app
public abstract void goBackKillFromNative();

// 登陆
public abstract void loginFromNative();

// 隐藏启动加载
public abstract void hiddenStartUnityLoading();

}

public class CNativeIOS : CNativeAPI { public override string GetAppHeaderFromNative() { #if UNITY_IOS return IosNativeAPI.GetAppHeaderFromNative(); #else return null; #endif }

typescript 复制代码
public override void takePhotosFromNative(string dictionaryJson)
{

#if UNITY_IOS IosNativeAPI.takePhotosFromNative(dictionaryJson); #endif }

csharp 复制代码
public override void goBackPendingFromNative()
{

#if UNITY_IOS IosNativeAPI.goBackPendingFromNative(); #endif }

csharp 复制代码
public override void goBackKillFromNative()
{

#if UNITY_IOS IosNativeAPI.goBackKillFromNative(); #endif }

csharp 复制代码
public override void loginFromNative()
{

#if UNITY_IOS IosNativeAPI.loginFromNative(); #endif }

csharp 复制代码
public override void hiddenStartUnityLoading()
{
    //
}

}

public class CNativeAndroid : CNativeAPI { public override string GetAppHeaderFromNative() { return GetAndroidJavaObject().Call("GetAppHeaderFromNative"); }

csharp 复制代码
public override void takePhotosFromNative(string dictionaryJson)
{
    GetAndroidJavaObject().Call("takePhotosFromNative", dictionaryJson);
}

public override void goBackPendingFromNative()
{
    //
}

public override void goBackKillFromNative()
{
    GetAndroidJavaObject().Call("goBackKillFromNative");
}

public override void loginFromNative()
{
    GetAndroidJavaObject().Call("LoginFromNative");
}

public override void hiddenStartUnityLoading()
{
    GetAndroidJavaObject().Call("hiddenStartUnityLoading");
}

public AndroidJavaObject GetAndroidJavaObject()
{
    AndroidJavaClass jc = new AndroidJavaClass("com.company.product.OverrideUnityActivity");
    AndroidJavaObject overrideActivity = jc.GetStatic<AndroidJavaObject>("instance");
    return overrideActivity;
}

}

public class CNativeOther : CNativeAPI { public override string GetAppHeaderFromNative() { return ""; }

typescript 复制代码
public override void takePhotosFromNative(string dictionaryJson)
{
    //
}

public override void goBackPendingFromNative()
{
    //
}

public override void goBackKillFromNative()
{
    //
}

public override void hiddenStartUnityLoading()
{
    //
}

public override void loginFromNative()
{
    //
}

}

#if UNITY_IOS public static class IosNativeAPI { //// 在Objective-C中实现的原生方法获取用户信息声明 [DllImport("__Internal")] public static extern string GetAppHeaderFromNative();

csharp 复制代码
// 在Objective-C中实现调用相机
[DllImport("__Internal")]
public static extern void takePhotosFromNative(string dictionaryJson);

// 在Objective-C中实现返回挂起app
[DllImport("__Internal")]
public static extern void goBackPendingFromNative();

// 在Objective-C中实现返回杀死app
[DllImport("__Internal")]
public static extern void goBackKillFromNative();

// 在Objective-C中实现登陆
[DllImport("__Internal")]
public static extern void loginFromNative();

} #endif

Assets/Plugins/iOS中的代码: NativeCallProxy.h

`#import <Foundation/Foundation.h> // NativeCallsProtocol defines protocol with methods you want to be called from managed @protocol NativeCallsProtocol //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

attribute ((visibility("default"))) @interface FrameworkLibAPI : NSObject // call it any time after UnityFrameworkLoad to set object implementing NativeCallsProtocol methods +(void) registerAPIforNativeCalls:(id) aApi;

@end`

NativeCallProxy.mm代码:

`#import <Foundation/Foundation.h> #import "NativeCallProxy.h"

@implementation FrameworkLibAPI

id api = NULL; +(void) registerAPIforNativeCalls:(id) aApi { api = aApi; }

@end

extern "C" {

//获取token,userid,homeuserid const char* GetAppHeaderFromNative(void) { return strdup([api GetAppHeaderFromNative]); }

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

//返回挂起unity void goBackPendingFromNative(void) { return [api goBackPendingFromNative]; }

//返回杀死unity void goBackKillFromNative(void) { return [api goBackKillFromNative]; }

// 登录 void loginFromNative(void) { return [api loginFromNative]; }

} `

三.执行打包:选择file 下的build setting

然后选择iOS下的build

如果代码没报错的话,那么恭喜你unity打包出来可以直接运行在xcode上了。

四.打出来的Unity-iPhone.xcodeproj工程集成到另一个工程中。

1.iOS手动修改配置到另一个工程:

(1)将打出来的包unity所有文件整个移动到另一个工程的unity3d目录下。

(2)设置data的target为framework

(3)修改unity的target为JRDebug_UAT和JRRelease_ProductSever (如果主工程GoHome没有配置多scheme环境的不用设置)

以下为主工程设置(与unity无关)

(4)unity framework的navtiveCallProxy.h设置为public

如果这个中间头文件在project中私有的话,要提到public中,framework要公开头文件

(5)运行下unity工程

sucess

(6)运行下ios工程(如果改动不成功,就把iOS的unityframework删除,重新添加下)

2.iOS通过脚本修改配置到另一个工程:

(1)build_move_file.sh文件

#第一步:修改unity导出来后的配置

ruby change_target_membership.rb

#第二步:编译framework

xcodebuild -project unity3d/Unity-iPhone.xcodeproj -target UnityFramework -configuration Release

echo "\n ---- 第二步,编译framework成功 ---- \n"

#第三步:添加framework到主工程中

ruby add_unityframework_native.rb

####(2)设置data的target为framework + 修改NativeCallProxy类为公开类 change_target_membership.rb文件

require 'xcodeproj'

打开Xcode项目

project_path = 'unity3d/Unity-iPhone.xcodeproj'

project = Xcodeproj::Project.open(project_path)

第一步:修改Data文件的targets

找到对应的targets

unity_iphone_target = project.targets.find { |target| target.name == 'Unity-iPhone' }

unity_framework_target = project.targets.find { |target| target.name == 'UnityFramework' }

查找 Data 文件夹的引用

data_group = project.main_group.find_subpath('Data', false)

这是 rough check,确保 data_group 确实指向你想要改变 target membership 的目录

raise 'Data directory not found' unless data_group

将 Data 文件夹添加到 unity_framework_target

unity_framework_target.add_resources([data_group])

第一步结束

第二步:修改NativeCallProxy类为公开类

找到NativeCallProxy.h文件

native_call_proxy_h_ref = project.files.find { |file| file.name == 'NativeCallProxy.h' }

raise 'NativeCallProxy.h file not found' unless native_call_proxy_h_ref

获取 headers build phase

headers_build_phase = unity_framework_target.build_phases.find { |bp| bp.class == Xcodeproj::Project::Object::PBXHeadersBuildPhase }

查找或创建一个 headers group

headers_group = project.main_group.find_subpath('Headers', true)

设置NativeCallProxy.h为Public

native_call_proxy_h_ref.build_files.each do |build_file|

build_file.settings = { 'ATTRIBUTES' => ['Public'] } if build_file.file_ref.real_path == native_call_proxy_h_ref.real_path

end

第二步结束

保存项目

project.save

####(3) 添加framework到主工程中 add_unityframework_native.rb文件

javascript 复制代码
require 'xcodeproj'

打开现有的Xcode项目

project_path = 'GoHome.xcodeproj'

project = Xcodeproj::Project.open(project_path)

找到你要添加框架的目标

target = project.targets.find { |t| t.name == 'GoHome' }

指定要添加的新Framework路径

new_framework_path = 'unity3d/build/Release-iphoneos/UnityFramework.framework'

定位到Frameworks引用组,这取决于你项目的实际结构

framework_group = project.frameworks_group

查找并删除现有的UnityFramework.framework引用

exist_framework_ref = framework_group.files.find { |file| file.path =~ /UnityFramework.framework/ }

if exist_framework_ref

从构建阶段中移除

target.frameworks_build_phases.remove_file_reference(exist_framework_ref)

从项目引用中移除

framework_group.children.delete(exist_framework_ref)

实际删除文件引用

exist_framework_ref.remove_from_project

end

添加新的UnityFramework.framework引用

framework_reference = framework_group.new_file(new_framework_path)

将framework添加到目标的'Frameworks'构建阶段中

target.frameworks_build_phases.add_file_reference(framework_reference, true)

确保新添加的Framework被设置为"Embed & Sign"

attributes = ['CodeSignOnCopy', 'RemoveHeadersOnCopy']

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); }

-(UIViewController *) getUnityRootViewController { return [[self.unityFwk appController] rootViewController]; }

-(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; }

//拍照之后返回小屋

  • (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。

  1. 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。

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。

当Unity项目导出之后,你会得到包含了unityLibrary模块的androidBuild文件夹。。

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
复制代码
 include ':unityLibrary'
project(':unityLibrary').projectDir=new File('..\UnityProject\androidBuild\unityLibrary') 

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
复制代码
implementation project(':unityLibrary')

打开build.gradle文件,把下面代码添加到allprojects{repositories{代码块。

bash 复制代码
复制代码
flatDir {
   dirs "${project(':unityLibrary').projectDir}/libs"
}

Gradle文件已经修改,单击Sync Now。

修改完后,同步Gradle,这样unityLibrary就被加入到项目中了。

  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。

如果一切顺利,我们应该可以运行NativeAndroidApp。

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...

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