swift整合版详见-->swift4.0+xCode9.1+Unity5.4
1、项目准备
工程截图.png
Unity工程.png
1.1 首先要有一个Unity工程和IOS工程
1.2 Unity导出时可选 模拟器模式 和 真机模式，导出后只能在对应的设备运行
1.3 确保导出的unity可以直接运行
1.4 建议在将Unity和IOS放在同一目录下
2.导入
拖动.png
group.png
2.1 在xcode中创建一个group，例如“Unity”，主要便于分类
2.2 拖入操作有三个选项，是否复制、创建组或者关联、添加到目标
建议都不要复制（复制会将内容添加到IOS项目中，后续替换起来麻烦）
而参见1.4操作，更新时，每次替换Unity目录即可
2.3 Classes和Libraries 选择groups
Data文件选择reference
网上很多教程要删除Unity下的一些.h文件，不删也没关系（因为头文件太多，每次删都要好久，只要你不点开，这个只会对你的xcodeproj文件大小有一点点很小的影响）
2.4 特别的，如果使用VR功能，Data文件夹下Raw文件夹中的QCAR和Vuforia要再拖一次放在根目录（原因不明），如下图
vr.png
3 添加framework
framework.png
3.1 就是这么多。。。大家也可以参照导出的Unity工程下的Framework进行添加
4 配置
打开Building Setting
Build Optons
Enable Bitcode NO
Linking
Other Linker Flags
-weak_framework
CoreMotion
-weak-lSystem
-Wl,-undefined,dynamic_lookup **可以不加，如果报metal相关的错误可以加一下**
Other C Flags
-DINIT_SCRIPTING_BACKEND=1
C Language Dialect
选择 C99
C++ Language Dialect
选择 C++ 11
4.1 Search Path
添加头文件路径和库文件路径
头文件.png
这里不用手打，可以直接拖进去添加
4.2 库路径
库文件.png
如果导出的Unity下有 plugin/ios 也添加进去
4.3 如果报头文件找不到之类的错误，看这里是否把包含头文件的路径都添加进去了
4.4 如果报link错误，看库路径是否都添加完整
4.5 其他配置
其他配置1.png
其他配置2.png
**关于配置部分比较麻烦，有两个方式参考：
1、参照导出的Unity项目的Building Setting
2、参照nerd （大神？）的视频教程， 原地址https://vimeo.com/145572230 （不太稳定）
**
5. 文件修改
5.1 修改pch
创建一个新的pch文件，找到原有的pch文件，复制到自定义的pch文件，并添加一行，如下图
原有的pch.png
自定义的pch.png
5.2 Building Setting中修改
添加pch路径.png
5.3 修改main文件
找到Unity的main.mm文件，直接复制到ios的main.m文件中（原有内容注释或者删除），并将文件名改为main.mm
找到const char* AppControllerClassName = "UnityAppController";替换为
const char* AppControllerClassName = "AppDelegate";5.4 打开Build Phases 搜索main.mm会有两个文件，删除Unity下的main.mm(否则会编译冲突)
（如果报错，duplicate xxx 多半是因为这个文件重复）
6 工程文件修改
6.1 APPDelegate.h
#import <UIKit/UIKit.h>
@interface AppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UIWindow *window;
@property (strong,nonatomic) UnityAppController *unityAppController;
//@property (nonatomic,strong) UINavigationController *navVC;
@property (nonatomic, strong) UIWindow *unityWindow;
- (void)hideUnityWindow;
- (void)showUnityWindow;
@end
6.2 APPDelegate.m
#import "AppDelegate.h"
@interface AppDelegate ()
@end
@implementation AppDelegate
// Unity相关方法
- (UIWindow *)unityWindow{
return UnityGetMainWindow();
}
- (void)showUnityWindow{
UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];
[backButton setImage:[UIImage imageNamed:@"close.png"] forState:UIControlStateNormal];
[backButton setAlpha:0.4];
[backButton setFrame:CGRectMake(self.unityWindow.frame.size.width-60, 10, 50, 50)];
[backButton addTarget:self action:@selector(hideUnityWindow) forControlEvents:UIControlEventTouchUpInside];
[self.unityWindow addSubview:backButton];
[self.unityWindow makeKeyAndVisible];
}
- (void)hideUnityWindow{
[self.window makeKeyAndVisible];
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
self.unityAppController=[[UnityAppController alloc] init];
[self.unityAppController application:application didFinishLaunchingWithOptions:launchOptions];
return YES;
}
- (void)applicationWillResignActive:(UIApplication *)application {
[self.unityAppController applicationWillResignActive:application];
}
- (void)applicationDidEnterBackground:(UIApplication *)application {
[self.unityAppController applicationDidEnterBackground:application];
}
- (void)applicationWillEnterForeground:(UIApplication *)application {
[self.unityAppController applicationWillEnterForeground:application];
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
[self.unityAppController applicationDidBecomeActive:application];
}
- (void)applicationWillTerminate:(UIApplication *)application {
[self.unityAppController applicationWillTerminate:application];
}
@end
6.3 UnityAppController.h
两个地方
@class UnityViewControllerBase;#import "AppDelegate.h" inline UnityAppController* GetAppController(){ AppDelegate *delegate = (AppDelegate*)[UIApplication sharedApplication].delegate; return delegate.unityAppController; }
#pragma once
#import <QuartzCore/CADisplayLink.h>
#include "PluginBase/RenderPluginDelegate.h"
@class UnityView;
@class UnityViewControllerBase;
@class DisplayConnection;
@interface UnityAppController : NSObject<UIApplicationDelegate>
{
UnityView* _unityView;
CADisplayLink* _displayLink;
UIWindow* _window;
UIView* _rootView;
UIViewController* _rootController;
UIView* _snapshotView;
DisplayConnection* _mainDisplay;
// we will cache view controllers for fixed orientation
// auto-rotation view contoller goes to index=0
UnityViewControllerBase* _viewControllerForOrientation[5];
#if !UNITY_TVOS
UIInterfaceOrientation _curOrientation;
#endif
id<RenderPluginDelegate> _renderDelegate;
}
// override it to add your render plugin delegate
- (void)shouldAttachRenderDelegate;
// this one is called at the very end of didFinishLaunchingWithOptions:
// after views have been created but before initing engine itself
// override it to register plugins, tweak UI etc
- (void)preStartUnity;
// this one is called at first applicationDidBecomeActive
// NB: it will be started with delay 0, so it will run on next run loop iteration
// this is done to make sure that activity indicator animation starts before blocking loading
- (void)startUnity:(UIApplication*)application;
// this is a part of UIApplicationDelegate protocol starting with ios5
// setter will be generated empty
@property (retain, nonatomic) UIWindow* window;
@property (readonly, copy, nonatomic) UnityView* unityView;
@property (readonly, copy, nonatomic) CADisplayLink* unityDisplayLink;
@property (readonly, copy, nonatomic) UIView* rootView;
@property (readonly, copy, nonatomic) UIViewController* rootViewController;
@property (readonly, copy, nonatomic) DisplayConnection* mainDisplay;
#if !UNITY_TVOS
@property (readonly, nonatomic) UIInterfaceOrientation interfaceOrientation;
#endif
@property (nonatomic, retain) id renderDelegate;
@property (nonatomic, copy) void(^quitHandler)();
@end
// Put this into mm file with your subclass implementation
// pass subclass name to define
#define IMPL_APP_CONTROLLER_SUBCLASS(ClassName) \
@interface ClassName(OverrideAppDelegate) \
{ \
} \
+(void)load; \
@end \
@implementation ClassName(OverrideAppDelegate) \
+(void)load \
{ \
extern const char* AppControllerClassName; \
AppControllerClassName = #ClassName; \
} \
@end
#import "AppDelegate.h"
inline UnityAppController* GetAppController()
{
AppDelegate *delegate = (AppDelegate*)[UIApplication sharedApplication].delegate;
return delegate.unityAppController;
}
#define APP_CONTROLLER_RENDER_PLUGIN_METHOD(method) \
do { \
id<RenderPluginDelegate> delegate = GetAppController().renderDelegate; \
if([delegate respondsToSelector:@selector(method)]) \
[delegate method]; \
} while(0)
#define APP_CONTROLLER_RENDER_PLUGIN_METHOD_ARG(method, arg) \
do { \
id<RenderPluginDelegate> delegate = GetAppController().renderDelegate; \
if([delegate respondsToSelector:@selector(method:)]) \
[delegate method:arg]; \
} while(0)
// these are simple wrappers about ios api, added for convenience
void AppController_SendNotification(NSString* name);
void AppController_SendNotificationWithArg(NSString* name, id arg);
void AppController_SendUnityViewControllerNotification(NSString* name);
主要参照了the-nerd的文章
https://the-nerd.be/2015/11/13/integrate-unity-5-in-a-native-ios-app-with-xcode-7/
视频参见：https://vimeo.com/145572230 （经常无法解析）
重新在b站传了一份，参见：https://www.bilibili.com/video/av13740194/
以上，是使用两个window交互显示的方式，可以用最基本的Unitydemo测试一下，OK在导入完整的Unity项目。
至于如何在某个页面的某个View上显示Unity，下一篇再说
