Unity iOS (swift 3.0)集成

在集成之前确保demo项目可以运行 (导出demo项目是最好用mac版Unity)

1.新建立文件 Unity.xconfig

// 写入自己的untiy对应的版本号
UNITY_RUNTIME_VERSION = 5.5.2f1;
UNITY_SCRIPTING_BACKEND = il2cpp;
UNITY_IOS_EXPORT_PATH = /Path/To/Your/Unity/iOS/Build;
GCC_PREFIX_HEADER = $(UNITY_IOS_EXPORT_PATH)/Classes/Prefix.pch;

OTHER_LDFLAGS = -weak-lSystem -weak_framework CoreMotion -weak_framework GameKit -weak_framework iAd -framework CoreGraphics -framework AVFoundation -framework CoreVideo -framework CoreMedia -framework SystemConfiguration -framework CoreLocation -framework MediaPlayer -framework CFNetwork -framework AudioToolbox -framework OpenAL -framework QuartzCore -framework OpenGLES -framework UIKit -framework Foundation -liconv.2 -liPhone-lib;

HEADER_SEARCH_PATHS = "$(UNITY_IOS_EXPORT_PATH)/Classes" "$(UNITY_IOS_EXPORT_PATH)/Classes/Native" "$(UNITY_IOS_EXPORT_PATH)/Libraries/libil2cpp/include";
LIBRARY_SEARCH_PATHS = "$(UNITY_IOS_EXPORT_PATH)/Libraries" "$(UNITY_IOS_EXPORT_PATH)/Libraries/libil2cpp/include";

ENABLE_BITCODE = NO;

SWIFT_OBJC_BRIDGING_HEADER = UnityBridge.h;

OTHER_CFLAGS = -DINIT_SCRIPTING_BACKEND=1;
CLANG_CXX_LANGUAGE_STANDARD = c++11;
CLANG_CXX_LIBRARY = libc++;
CLANG_ENABLE_MODULES = NO;
CLANG_WARN_BOOL_CONVERSION = NO;
CLANG_WARN_CONSTANT_CONVERSION = NO;
CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES;
CLANG_WARN_EMPTY_BODY = NO;
CLANG_WARN_ENUM_CONVERSION = NO;
CLANG_WARN_INT_CONVERSION = NO;
CLANG_WARN_OBJC_ROOT_CLASS = YES;
CLANG_WARN_UNREACHABLE_CODE = NO;
CLANG_WARN__DUPLICATE_METHOD_MATCH = NO;
GCC_C_LANGUAGE_STANDARD = c99;
GCC_ENABLE_OBJC_EXCEPTIONS = NO;
GCC_ENABLE_CPP_RTTI = NO;
GCC_PRECOMPILE_PREFIX_HEADER = YES;
GCC_THUMB_SUPPORT = NO;
GCC_USE_INDIRECT_FUNCTION_CALLS = NO;
GCC_WARN_64_TO_32_BIT_CONVERSION = NO;
GCC_WARN_64_TO_32_BIT_CONVERSION[arch=*64] = YES;
GCC_WARN_ABOUT_RETURN_TYPE = YES;
GCC_WARN_UNDECLARED_SELECTOR = NO;
GCC_WARN_UNINITIALIZED_AUTOS = NO;
GCC_WARN_UNUSED_FUNCTION = NO;

2. project配置, 如下图

image.png

3.新建文件夹unity_ios, 并且将Classes Data Libraries 三个文件拷贝到该文件夹下

image.png

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添加完成之后, 应该显示这样

image.png

4.接下来下载三个文件, 参考链接
新建一个文件夹 objc, 将三个文件拷贝到此文件夹下

image.png

UnityBridge.h 文件内容

#ifndef UnityBridge_h
#define UnityBridge_h

#import 
#import "UnityUtils.h"
#import "UnityAppController.h"
#import "UnityInterface.h"
#import "ReceiveUnitySystemEvent.h"
#endif /* UnityBridge_h */

UnityUtils.h文件内容

#ifndef UnityUtils_h
#define UnityUtils_h

void custom_unity_init(int argc, char* argv[]);

#endif /* UnityUtils_h */

UnityUtils.mm文件内容

#include "RegisterMonoModules.h"
#include "RegisterFeatures.h"
#include 


// Hack to work around iOS SDK 4.3 linker problem
// we need at least one __TEXT, __const section entry in main application .o files
// to get this section emitted at right time and so avoid LC_ENCRYPTION_INFO size miscalculation
static const int constsection = 0;

void UnityInitTrampoline();


extern "C" void custom_unity_init(int argc, char* argv[])
{
    @autoreleasepool
    {
        UnityInitTrampoline();
        //        UnityParseCommandLine(argc, argv); //Unity 5.3+
        UnityInitRuntime(argc, argv); //Unity 5.6+，5.4和5.5用哪个我没试过，可以根据报错情况选择。
        
        RegisterMonoModules();
        NSLog(@"-> registered mono modules %p\n", &constsection);
        RegisterFeatures();
        
        // iOS terminates open sockets when an application enters background mode.
        // The next write to any of such socket causes SIGPIPE signal being raised,
        // even if the request has been done from scripting side. This disables the
        // signal and allows Mono to throw a proper C# exception.
        std::signal(SIGPIPE, SIG_IGN);
    }
}

注意三个文件都是用 create groups (不要创建桥接文件 don't create)

image.png

5.模型文件的添加

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6. 修改这两个地方(build setting 最末端)

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7. 修改桥接文件路径

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8. 添加依赖库文件

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9. main.mm修改

// WARNING: this MUST be c decl (NSString ctor will be called after +load, so we cant really change its value)
const char* AppControllerClassName = "UnityAppController";
int main_unity_default(int argc, char* argv[])
{
    @autoreleasepool
    {
        UnityInitTrampoline();
        //        UnityParseCommandLine(argc, argv); //Unity 5.3+
        UnityInitRuntime(argc, argv); //Unity 5.6+，5.4和5.5用哪个我没试过，可以根据报错情况选择。
        
        RegisterMonoModules();
        NSLog(@"-> registered mono modules %p\n", &constsection);
        RegisterFeatures();
        
        // iOS terminates open sockets when an application enters background mode.
        // The next write to any of such socket causes SIGPIPE signal being raised,
        // even if the request has been done from scripting side. This disables the
        // signal and allows Mono to throw a proper C# exception.
        std::signal(SIGPIPE, SIG_IGN);
        
        //UIApplicationMain(argc, argv, nil, [NSString stringWithUTF8String:AppControllerClassName]);
        //        UIApplicationMain(argc, argv, nil, NSStringFromClass([UnitySubAppDelegate class]));
        UIApplicationMain(argc, argv, nil, [NSString stringWithUTF8String:AppControllerClassName]);
    }
    
    return 0;
}

10. UnityAppController.h文件修改

extern UnityAppController* _UnityAppController;
NS_INLINE UnityAppController* GetAppController()
{
    NSObject* delegate = [UIApplication sharedApplication].delegate;
    UnityAppController* currentUnityController = (UnityAppController *)[delegate valueForKey:@"currentUnityController"];
    return currentUnityController;
}

11. 修改 Appdelegate.swift 文件

import UIKit

//注释@UIApplicationMain, 让swift从main.swift启动
//@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    var window: UIWindow?
    var currentUnityController: UnityAppController!
    
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        currentUnityController = UnityAppController()
        currentUnityController.application(application, didFinishLaunchingWithOptions: launchOptions)
        
        window = UIWindow.init(frame: UIScreen.main.bounds)
        let sb = UIStoryboard.init(name: "Main", bundle: nil)
        let vc = sb.instantiateInitialViewController()
        window?.rootViewController = vc!;
        window!.makeKeyAndVisible()
        return true
    }
    
    func applicationWillResignActive(_ application: UIApplication) {
        currentUnityController.applicationWillResignActive(application)
    }
    
    func applicationDidEnterBackground(_ application: UIApplication) {
        currentUnityController.applicationDidEnterBackground(application)
    }
    
    func applicationWillEnterForeground(_ application: UIApplication) {
        currentUnityController.applicationWillEnterForeground(application)
    }
    
    func applicationDidBecomeActive(_ application: UIApplication) {
        currentUnityController.applicationDidBecomeActive(application)
    }
    
    func applicationWillTerminate(_ application: UIApplication) {
        currentUnityController.applicationWillTerminate(application)
    }
}

12.添加main.swift文件

import Foundation
import UIKit

custom_unity_init(CommandLine.argc, CommandLine.unsafeArgv)

UIApplicationMain(
    CommandLine.argc,
    UnsafeMutableRawPointer(CommandLine.unsafeArgv)
        .bindMemory(
            to: UnsafeMutablePointer.self,
            capacity: Int(CommandLine.argc)),
    nil,
    NSStringFromClass(AppDelegate.self)
)

13.修改ViewController.swift 文件使用AR

@IBAction func loadUnity(sender: UIButton) {
        let unityview = UnityGetGLView()
        unityview?.translatesAutoresizingMaskIntoConstraints = false
        view.addSubview(unityview!)
        let views = ["view": unityview]
        let w = NSLayoutConstraint.constraints(withVisualFormat: "|[view]|", options: [], metrics: nil, views: views)
        let h = NSLayoutConstraint.constraints(withVisualFormat: "V:|[view]|", options: [], metrics: nil, views: views)
        
        view.addConstraints(w + h)
    }

14. 停止AR识别

https://github.com/blitzagency/ios-unity5

15.easyAR 需要修改的地方 (相机黑屏没有画面)
在 UnityAppController.mm 中添加

extern "C" void ezarUnitySetGraphicsDevice(void* device, int deviceType, int eventType);
extern "C" void ezarUnityRenderEvent(int marker);

- (void)shouldAttachRenderDelegate {
//新增
UnityRegisterRenderingPlugin(&ezarUnitySetGraphicsDevice, &ezarUnityRenderEvent);
//新增
}

遇到的一些问题

问题一:

shellScript = ""$PROJECT_DIR/MapFileParser.sh""\nrm -rf

将多了的引号删除

问题二:

_DefaultTrackableEventHandler_OnTrackingFound_m4202593607 in Bulk_Assembly-CSharp_0.o

iOS中自定义函数未定义

问题三

dataSet 加载失败, 是由于没找到相关路径.

直接在项目路径下拷贝一份资源文件

问题四:

相机6s 黑屏问题
用 Mac unity 2018 导出包

问题五: 打开 和 暂停

https://github.com/blitzagency/ios-unity5

问题六: Objective-C不能用@try*

今天遇到Cannot use ‘@try’ with Objective-C exceptions disable，解决方法：将LLVM 6.1 - Language - Objective C -> Enable Objective-C Exceptions改为YES。

问题七: “_AppControllerClassName”, referenced from:

  +[VuforiaNativeRendererController(OverrideAppDelegate) load] in VuforiaNativeRendererController.o

修改 main.mm 中的方法

const char* AppControllerClassName = "UnityAppController";

int main_unity_default(int argc, char* argv[])
{
    @autoreleasepool
    {
        UnityInitTrampoline();
        //        UnityParseCommandLine(argc, argv); //Unity 5.3+
        UnityInitRuntime(argc, argv); //Unity 5.6+，5.4和5.5用哪个我没试过，可以根据报错情况选择。
        
        RegisterMonoModules();
        NSLog(@"-> registered mono modules %p\n", &constsection);
        RegisterFeatures();
        
        // iOS terminates open sockets when an application enters background mode.
        // The next write to any of such socket causes SIGPIPE signal being raised,
        // even if the request has been done from scripting side. This disables the
        // signal and allows Mono to throw a proper C# exception.
        std::signal(SIGPIPE, SIG_IGN);
        
        //UIApplicationMain(argc, argv, nil, [NSString stringWithUTF8String:AppControllerClassName]);
        //        UIApplicationMain(argc, argv, nil, NSStringFromClass([UnitySubAppDelegate class]));
        UIApplicationMain(argc, argv, nil, [NSString stringWithUTF8String:AppControllerClassName]);
    }
    
    return 0;
}

问题八: Library not loaded: @rpath/Vuforia.framework/Vuforia

Image not load

ADEFEA2C-14FE-485C-8F48-A9039D465AD5.png

问题九: Xcode release下调试报错[Project Name] was compiled with optimization - stepping may behave oddly; variables may not be available

• 解决：Build Setting中的optimization level release改为与debug一样的模式。-
• updated your OTHER_CFLAGS in .xcconfig to
  OTHER_CFLAGS = $(inherited) -DINIT_SCRIPTING_BACKEND=1 -fno-strict-overflow -DRUNTIME_IL2CPP=1;
  added the @objc in front of var currentUnityController: UnityAppController!

问题十: 打包时报错

no match func objc_msgsend
解决方法:
[image:BC6992C7-CA27-4EE3-84F1-B046DD9CF584-3925-00006B91ED0379F1/07DB4B63-738D-446B-AE92-A0ECC8373448.png]
设置为 NO

问题十一: 打包时 Swift build error_if_any_output_files_are_specified_they_all_must_be

修改
[image:54368292-E997-4C27-B26F-EC5A19BC9F11-3925-00006CBDC9844CEC/4E5A069D-1DC0-4C9B-9FF7-F20E138AFBBC.png]
debug 和 release 修改为increasemental

问题十二: error: unexpected input file: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS12.0.sdk

other swift flag 配置错误了

参考链接

参考1
参考2