由于項(xiàng)目有此需求，所以不得不爬此坑，爬了兩天終于出坑
參考

參考使用的Unity版本是2018.2.1f1 我的是2018.4.0f1 所以配置上有不同

1.首先Unity導(dǎo)出Xcode工程 這里注意一下 strip engine code 去勾

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2.生成的iOS工程取MapFileParser.sh、Classes、Data、Libraries四個(gè)文件

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3.將文件導(dǎo)入framework工程中（iOS創(chuàng)建framework這里不講解） 工程結(jié)構(gòu)如下

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Unity和testlibocSDK文件是同一目錄 Data文件的引用選擇Create folder refrences，其他選擇Create groups，然后將Libraries下的libil2cpp文件夾Remove Refreence

Build phases配置

4.在Build phases中添加Run Script腳本"$PROJECT_DIR/MapFileParser.sh"

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5.添加幾個(gè)類文件 類的下載地址

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將SpaceAppController.h設(shè)置為Public

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Build Settings設(shè)置

6.因?yàn)樵糜螒?所以此SDK應(yīng)該是動(dòng)態(tài)庫 靜態(tài)庫的話下面會說導(dǎo)致的問題 而且靜態(tài)庫比較占用資源 Mach-O Type 不用修改 （默認(rèn)就是動(dòng)態(tài)庫 - Dynamic Library）

7.Other Linker Flags 添加$(inherited)、-weak_framework、CoreMotion、-weak-lSystem

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8.Header Search Paths 添加

• $(inherited)、
• "$(SRCROOT)"、
• $(PROJECT_DIR)/Unity/Classes、
• $(PROJECT_DIR)/Unity/Classes/Native、
• $(PROJECT_DIR)/Unity/Libraries、
• $(PROJECT_DIR)/Unity/Libraries/bdwgc/include、

• $(PROJECT_DIR)/Unity/Libraries/libil2cpp/include

  
  
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9.Library Search Paths 不用設(shè)置 自己生成

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10.Other C Flags 添加$(inherited)、-DINIT_SCRIPTING_BACKEND=1、-fno-strict-overflow、-DNET_4_0、-DRUNTIME_IL2CPP=1

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11.Other C++ Flags

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12.Prefix Header 添加Unity/Classes/Prefix.pch

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13.Mismatched Return Type添加YES 不要用YES(Error)

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14.User-Defined 添加UNITY_RUNTIME_VERSION -> Unity 版本號、UNITY_SCRIPTING_BACKEND -> il2cpp

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爬坑過程！！
1.WWWConnection.h:4:41: error: cannot find interface declaration for 'NSObject', superclass of 'UnityWWWConnectionDelegate'

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解決：系統(tǒng)庫添加少了
2.'Classes/Unity/UnitySharedDecls.h' file not found

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解決：找到文件 刪除前面路徑 改成 #include "UnitySharedDecls.h"

3.'Classes/iPhone_Sensors.h' file not found
解決同上

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解決：刪除對DynamicLibEngineAPI-functions.h和DynamicLibEngineAPI.mm的引用

5.Undefined symbol: __mh_execute_header
_UnityGetAppLoadAddress in CrashReporter.o

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解決：找到CrashReporter.mm文件
注釋代碼UnityGetAppLoadAddress、UnityGetAppLoadCommandAddress、UnityGetAppLoadCommandCount

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6.重復(fù)引用

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解決：Unity的main.mm文件和導(dǎo)入的UnityMain.mm重復(fù)了 刪除對main.mm的引用即可

7.這個(gè)問題剛開始就出現(xiàn)了 我反復(fù)刪除添加libil2cpp文件夾貌似自己就好了 （主要是我也不記得怎么修復(fù)的了...）

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當(dāng)然你添加libil2cpp文件后會報(bào)另一個(gè)問題（libil2cpp文件里有些include引用會報(bào)錯(cuò) 排查非常麻煩，感覺加上libil2cpp文件就是不對的操作）

新項(xiàng)目引用SDK

1.引入framework 文件目錄添加MapFileParser文件

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2.Build Phrase配置
添加Run Script "$PROJECT_DIR/MapFileParser.sh"

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3.添加Copy Files

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代碼使用

ViewController.m文件 只需加上如下代碼即可

#import "ViewController.h"
//#import <testliboc/testliboc.h>
#import <testlibocSDK/testlibocSDK.h>

@interface ViewController ()
//Main.storyboard上添加一個(gè)view 關(guān)聯(lián)上即可
@property (nonatomic, weak) IBOutlet UIView* unityContainerView;
@property (nonatomic, strong) UIView* unityView;
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.view.backgroundColor = [UIColor yellowColor];
    
    UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
    btn.frame = CGRectMake(100, 100, 100, 50);
    [btn setBackgroundColor:[UIColor redColor]];
    [btn addTarget:self action:@selector(aaa) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:btn];
    
}

- (void)aaa{
    
    [[SpaceAppController sharedController] application:[UIApplication sharedApplication] didFinishLaunchingWithOptions:[NSDictionary dictionary]];
    [[SpaceAppController sharedController] applicationDidBecomeActive:[UIApplication sharedApplication]];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationWillResignActive) name:UIApplicationWillResignActiveNotification object:nil];
    
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationDidBecomeActive) name:UIApplicationDidBecomeActiveNotification object:nil];
    
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationWillEnterForeground) name:UIApplicationWillEnterForegroundNotification object:nil];
    
    
    self.unityView = [SpaceAppController sharedController].unityView;
    [self.unityContainerView addSubview:self.unityView];
}


- (void)viewDidLayoutSubviews {
    [super viewDidLayoutSubviews];
    self.unityView.frame = self.unityContainerView.bounds;
}


- (void)applicationWillResignActive {
    [[SpaceAppController sharedController] applicationWillResignActive:[UIApplication sharedApplication]];
}

- (void)applicationDidBecomeActive {
    [[SpaceAppController sharedController] applicationDidBecomeActive:[UIApplication sharedApplication]];
}

- (void)applicationWillEnterForeground {
    [[SpaceAppController sharedController] applicationWillEnterForeground:[UIApplication sharedApplication]];
}

- (void)dealloc {
    [[NSNotificationCenter defaultCenter] removeObserver:self];
    [[SpaceAppController sharedController] applicationWillResignActive:[UIApplication sharedApplication]];
}


@end

這里補(bǔ)充一下 之前打包的靜態(tài)庫framework的問題
靜態(tài)庫打包參考了上一篇Unity文件放到iOS里的配置及上面的參考鏈接還有靜態(tài)庫打包的配置（參考我之前寫的framework打包）

打包成功后，項(xiàng)目引入時(shí)會報(bào)錯(cuò)（libil2cpp文件找不到），必須把Libraries文件也引入才行，然后運(yùn)行沒問題，但是當(dāng)加載Unity時(shí)會報(bào)錯(cuò) (crash occurred >>> il2cpp::vm:MetadataCache::Initialize())

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對于這個(gè)問題應(yīng)該是Unity版本不同導(dǎo)致的 他應(yīng)該是引用不到il2cpp的原因
關(guān)于此問題的討論