Unity游戏嵌入iOS(Swift)应用(融合为一个应用)_天添向上UT_unity 嵌入ios

irpas 02-07 4517

集成完后可以使Unity的游戏变为原生APP的一部分，让两个项目完美融合成一个APP。两个项目还可以相互传值，使应用性更强。

一开发工具版本： 01 iOS 开发工具版本Xcode Version 13.3 (13E113) 02 iOS项目开发语言为Swift4.2 03 Unity开发工具版本 2019.4.16f1c1 二新建一个iOS项目和Unity项目

01 iOS新建一个Swift语言的项目。在新建的iOS工程里，新建文件夹Unity_Framework_Project，后续unity导出的工程放到这个文件夹里 02 Unity项目里，切到iOS平台 Unity将程序包导出，放入iOS工程里的文件夹Unity_Framework_Project。导出的文件 03 把游戏工程导入iOS工程 04 做如下设置 05 加入代码做到unity和ios相互传值的代码

unity项目里新建两个文件，加入 iOSUtilUnity3dBridge.h

#import <Foundation/Foundation.h> @interface iOSUtilUnity3dBridge : NSObject #ifdef __cplusplus extern "C"{ #endif const char* UnitySendMessageToiOS(const char *str); NSString* iOSGetMessage(); #ifdef __cplusplus } #endif @end

iOSUtilUnity3dBridge.m

#import <Foundation/Foundation.h> #import "iOSUtilUnity3dBridge.h" #ifdef __cplusplus extern "C" { #endif NSString *returnString; //NSString转char* char* _MakeStringCopy(const char* str) { if(str == NULL){return NULL;} char* res = (char*)malloc(strlen(str)+1); strcpy(res, str); return res; } const char* UnitySendMessageToiOS(const char *str) { NSString *string1 = [[NSString alloc] initWithUTF8String:str]; NSString *string2 = [NSString stringWithFormat:@"%@", string1]; returnString = string2; return _MakeStringCopy([string2 UTF8String]); } NSString* iOSGetMessage() { return returnString; } #ifdef __cplusplus } #endif

unity导出的ios项目，如下图需要调整iOSUtilUnity3dBridge.h的位置

添加如下代码 #import “iOSUtilUnity3dBridge.h”

(NSString *)myiOSGetMessage; (NSString *)myiOSGetMessage { return iOSGetMessage(); }

添加2个类，控制Unity游戏在APP画面里的显示 UnityFrameworkWrapper.swift

import Foundation import UnityFramework protocol UnityFrameworkDeallocator { func exitUnity() } class UnityFrameworkWrapper: NSObject, UnityFrameworkListener { static let shared = UnityFrameworkWrapper() // MARK: - Properties var framework: UnityFramework var delegate: UnityFrameworkDeallocator? // MARK: - init override init() { self.framework = UnityFramework.getInstance() super.init() //下面的BundleId是unity的ios工程里framework的target里的BundleId，这个要和里面的包名一致。 framework.setDataBundleId("com.unity3d.framework") framework.register(self) //这句不加，程序运行不起来 framework.runEmbedded(withArgc: CommandLine.argc, argv: CommandLine.unsafeArgv, appLaunchOpts: nil) } // MARK: - NativeCallsProtocol func showHostMainWindow(_ color: String!) { delegate?.exitUnity() } //unity的CSharp代码里调用Application.unload后会触发下面的方法 func unityDidUnload(_ notification: Notification!) { print("unity发送的信息，ios接收的信息 = \(String(describing: framework.myiOSGetMessage()))") //点击Unity的Application.unload方法会进入到这个方法 framework.unregisterFrameworkListener(self) //调用UnityViewController里的exitUnity方法 delegate?.exitUnity() } func showUnityView() { //iOS向Unity发送信息 framework.sendMessageToGO(withName: "Main Camera", functionName: "IOSToUnity", message: "test") //显示unity画面 framework.showUnityWindow() } }

UnityViewController.swift

import UIKit class UnityViewController: UIViewController, UnityFrameworkDeallocator { let unityInstance = UnityFrameworkWrapper.init() //进入游戏屏幕由竖屏旋转为横屏 override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(animated) let orientationTarget = NSNumber.init(value: UIInterfaceOrientation.landscapeRight.rawValue) UIDevice.current.setValue(orientationTarget, forKey: "orientation") } //退出游戏屏幕由横屏旋转为竖屏 override func viewWillDisappear(_ animated: Bool) { super.viewWillDisappear(animated) let orientationTarget = NSNumber.init(value: UIInterfaceOrientation.portrait.rawValue) UIDevice.current.setValue(orientationTarget, forKey: "orientation") } //屏幕支持旋转 override var shouldAutorotate: Bool { return true } override func viewDidLoad() { super.viewDidLoad() startUnity() } func startUnity() { //加载游戏画面 unityInstance.delegate = self unityInstance.showUnityView() } func exitUnity() { //退出游戏画面 let appDelegate = UIApplication.shared.delegate as? AppDelegate //不加下面的代码，从游戏回到APP画面会卡主 if let window = appDelegate?.window { window.makeKeyAndVisible() } //退回上一级画面 self.dismiss(animated: false, completion: nil) } }

06 新建一个文件夹存放生成的unityframework

编译生成unityframework 找到它添加进iOS工程 Xcode13建立的工程，iOS做一些设置开发语言设为Swift4.2

删除系统的Main，自己新建一个

import UIKit @main class AppDelegate: UIResponder, UIApplicationDelegate { var window: UIWindow? func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { window = UIWindow(frame:UIScreen.main.bounds) window?.backgroundColor = .white window?.rootViewController = ViewController() window?.makeKeyAndVisible() return true } }

07 实现进入游戏和传值的部分

import UIKit class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() self.view.backgroundColor = .white let buttonGoToGame = UIButton(frame: CGRect(x: 100, y: 200, width: 100, height: 100)) buttonGoToGame.backgroundColor = .blue buttonGoToGame.setTitle("点击进入游戏", for: .normal) view.addSubview(buttonGoToGame) buttonGoToGame.addTarget(self, action: #selector(buttonGoToGameClick), for: UIControl.Event.touchUpInside) } @objc func buttonGoToGameClick() { let unityViewController = UnityViewController() unityViewController.modalPresentationStyle = UIModalPresentationStyle.fullScreen self.present(unityViewController, animated: false) } }

08 项目APP是竖屏，游戏是横屏，做的一些设置 09 ios向unity传值的核心代码原理是发送的信息给到游戏的主摄像机上，上面挂上脚本接收。

using System.Collections; using System.Collections.Generic; using UnityEngine; public class GetMessageFromiOS : MonoBehaviour { public void IOSToUnity(string str) { Debug.Log("Unity接收IOS信息" + str); } }

10 unity传值给ios的核心代码

using System.Collections; using System.Collections.Generic; using System.Runtime.InteropServices; using UnityEngine; using UnityEngine.UI; public class Demo : MonoBehaviour { public Button button1; public Button button2; public Camera camera; #if UNITY_IOS [DllImport("__Internal")] // Unity传值给iOS private static extern string UnitySendMessageToiOS(string message); #endif // Start is called before the first frame update void Start() { button1.onClick.AddListener(()=> { #if UNITY_IOS //Unity发送信息给iOS UnitySendMessageToiOS("UnityToiOS"); //unity程序关闭 Application.Unload(); #endif }); //主相机颜色改变 button2.onClick.AddListener(() => { camera.backgroundColor = new Color(0 / 255, 255 / 255, 255 / 255); }); } }