一 、方案一 通过指针传值和使用 MonoPInvokeCallback 从C#层向C层注册回调函数
1.1 iOS调用Unity函数Unity 给iOS传值
第一步C#端 定义 C#调用 ios 原生函数标识 固定写法
/// <summary>/// 定义 C#调用 ios 原生函数标识 固定写法/// </summary>private const string DLLName = "__Internal";[UsedImplicitly, DllImport(DLLName)]private static extern void MobileNumberAuthiOS_Initialize(string secret, AliMobileAuthLogCallback logCallback,NumberAuthInitCallback initCallback);第二步C#端 定义c# 传递到原生的的委托代理
/// <summary>/// 定义c# 传递到原生的的委托代理，接收ios原生回传的值/// </summary>private delegate void AliMobileAuthLogCallback(string log);private delegate void NumberAuthInitCallback(int success, string msg);第三步C# 端 定义C#端的代理函数，接收ios 传递过来的值
/// <summary>/// 定义C#端的代理函数，用于接收ios 传递过来的值/// </summary>/// <param name="log"></param>[MonoPInvokeCallback(typeof(AliMobileAuthLogCallback))]private static void HandleOnAliMobileAuthLogCallback(string log){InfoLog(log);}[MonoPInvokeCallback(typeof(NumberAuthInitCallback))]private static void HandleOnSmsAuthInitCallback(int success, string msg){InfoLog($"开始初始化回调，success:{success} msg: {msg}");_initializeCallback?.Invoke(success, msg);}第四步 C#端 调用上面定的调用ios 的函数
/// C# 调用上面定的调用ios 的函数 ，secret 参数，HandleOnAliMobileAuthLogCallback，HandleOnSmsAuthInitCallback 要传递过去的代理函数MobileNumberAuthiOS_Initialize(secret, HandleOnAliMobileAuthLogCallback, HandleOnSmsAuthInitCallback);第五步 ios 端 ios 定义c#调用的ios 方法 固定写法
///ios 定义c#调用的ios 方法 固定写法
#if defined(__cplusplus)
extern "C" {
#endifvoid MobileNumberAuthiOS_Initialize(const char* secret ,void(*aliMobileAuthLogCallback)(const char* log), void(*initSDKCallback)(int, const char * )){///将c#的代理指针赋值给ios的块指针AliMobileAuthLogCallback = aliMobileAuthLogCallback;InitSDKCallback = initSDKCallback;///调用ios的方法[[AliMobileNumberAuth sharedManager] Initialize:secret];}#if defined(__cplusplus)
}
#endif第六步ios 端 定义接收c#要传递过来的代理指针
///定义接收c#要传递过来的代理指针
static void (*AliMobileAuthLogCallback)(const char* log);
static void(*InitSDKCallback)(int,const char *);第七步ios 端 在ios函数中 回调c#的代码函数，将ios这边的值传递到c#
-(void)Initialize:(const char*)key {///接收c#传递过来的值NSString * dataString = [NSString stringWithFormat:@"%s",key];///ios 回调c#的代码函数，将ios这边的值传递到c#if (InitSDKCallback) {NSString * dataString = @"回传值";int code = 1;InitSDKCallback(code,[dataString UTF8String]);}}以上就是unity和ios 原生交互 通过指针传值和代理（delegate）回传值 定义和接收值的完整实现过程
第八步 C# 和ios 完整代码部分
8.1 ios 代码
//ios 代码
#import "AliMobileNumberAuth.h"///定义接收c#要传递过来的代理指针
static void (*AliMobileAuthLogCallback)(const char* log);
static void(*InitSDKCallback)(int,const char *);static bool EnableLog;
@interface AliMobileNumberAuth()
@end@implementation AliMobileNumberAuth///ios 定义c#调用的ios 方法 固定写法
#if defined(__cplusplus)
extern "C" {
#endifvoid MobileNumberAuthiOS_Initialize(const char* secret ,void(*aliMobileAuthLogCallback)(const char* log), void(*initSDKCallback)(int, const char * )){///将c#的代理指针赋值给ios的块指针AliMobileAuthLogCallback = aliMobileAuthLogCallback;InitSDKCallback = initSDKCallback;///调用ios的方法[[AliMobileNumberAuth sharedManager] Initialize:secret];}#if defined(__cplusplus)
}
#endif-(void)Initialize:(const char*)key {///接收c#传递过来的值NSString * dataString = [NSString stringWithFormat:@"%s",key];///ios 回调c#的代码函数，将ios这边的值传递到c#if (InitSDKCallback) {NSString * dataString = @"回传值";int code = 1;InitSDKCallback(code,[dataString UTF8String]);}}
#pragma mark - LifeCycle
+(instancetype)sharedManager {static dispatch_once_t onceToken;static AliMobileNumberAuth *instance;dispatch_once(&onceToken, ^{instance = [[AliMobileNumberAuth alloc] init];});return instance;
}-(void)MobileNumberAuthiOS_CheckEnvironment{[self LogMessage:@"开始检测当前环境是否支持一键登录"];__block BOOL support = YES;[[TXCommonHandler sharedInstance] checkEnvAvailableWithAuthType:PNSAuthTypeLoginToken complete:^(NSDictionary * _Nullable resultDic) {NSString *dataStirng = [[resultDic objectForKey:@"msg"] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];NSString * code = [resultDic objectForKey:@"resultCode"];if (CheckEnvironmentCallback) {support = [PNSCodeSuccess isEqualToString:code];CheckEnvironmentCallback(support ? 1 : [code intValue],[dataStirng UTF8String]);CheckEnvironmentCallback = nil;}[self LogMessage:[NSString stringWithFormat:@"检测一键登录resultmsg：%@ resultCode:%@,是否支持一键登录:%d",[resultDic objectForKey:@"resultCode"],dataStirng,support]];}];
}
-(void)MobileNumberAuthiOS_GetToken{//3. 开始一键登录流程//3.1 调用加速授权页弹起接口，提前获取必要参数，为后面弹起授权页加速
UIViewController *rootViewController = [self topViewController];self.rootViewController = rootViewController;
__weak typeof(self) weakSelf = self;
TXCustomModel *model = [DoraemonModelCreate createAlert];[[TXCommonHandler sharedInstance] accelerateLoginPageWithTimeout:3.0 complete:^(NSDictionary * _Nonnull resultDic) {NSString *code = [resultDic objectForKey:@"resultCode"];NSString *dataStirng = [[resultDic objectForKey:@"msg"] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];[self LogMessage:[NSString stringWithFormat:@"dataStirng%@",dataStirng]];if ([PNSCodeSuccess isEqualToString:[resultDic objectForKey:@"resultCode"]] == NO) {if (NumberAuthGetTokenCallback) {NumberAuthGetTokenCallback([code UTF8String] ,[dataStirng UTF8String]);[rootViewController dismissViewControllerAnimated:YES completion:nil];NumberAuthGetTokenCallback = nil;}[self LogMessage:[NSString stringWithFormat:@"加速授权页弹起失败%@",dataStirng]];return ;}//3.2 调用获取登录Token接口，可以立马弹起授权页，model的创建需要放在主线程[[TXCommonHandler sharedInstance] getLoginTokenWithTimeout:1.0 controller:rootViewController model:model complete:^(NSDictionary * _Nonnull resultDic) {NSString *code = [resultDic objectForKey:@"resultCode"];NSString *dataStirng = [[resultDic objectForKey:@"msg"] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];if ([PNSCodeLoginControllerPresentSuccess isEqualToString:code]) {[self LogMessage:@"弹起授权页成功"];} else if ([PNSCodeLoginControllerClickCancel isEqualToString:code]) {[self LogMessage:@"点击了授权页的返回"];if (NumberAuthGetTokenCallback) {NumberAuthGetTokenCallback([code UTF8String] ,[dataStirng UTF8String]);NumberAuthGetTokenCallback = nil;}[rootViewController dismissViewControllerAnimated:YES completion:nil];} else if ([PNSCodeLoginControllerClickChangeBtn isEqualToString:code]) {[self LogMessage:@"点击切换其他登录方式按钮"];} else if ([PNSCodeLoginControllerClickLoginBtn isEqualToString:code]) {if ([[resultDic objectForKey:@"isChecked"] boolValue] == YES) {[self LogMessage:@"点击了登录按钮，check box选中，SDK内部接着会去获取登陆Token"];} else {[[ToastUtil toast] showToast:@"请先同意协议"];[self LogMessage:@"点击了登录按钮，check box未选中，SDK内部不会去获取登陆Token"];}} else if ([PNSCodeLoginControllerClickCheckBoxBtn isEqualToString:code]) {[self LogMessage:@"点击check box"];} else if ([PNSCodeLoginControllerClickProtocol isEqualToString:code]) {[self LogMessage:@"点击了协议富文本"];} else if ([PNSCodeSuccess isEqualToString:code]) {//点击登录按钮获取登录Token成功回调NSString *token = [resultDic objectForKey:@"token"];if (NumberAuthGetTokenCallback) {NumberAuthGetTokenCallback([code UTF8String],[token UTF8String]);[rootViewController dismissViewControllerAnimated:YES completion:nil];NumberAuthGetTokenCallback = nil;}[[TXCommonHandler sharedInstance] hideLoginLoading];[self LogMessage:[NSString stringWithFormat:@"获取登录Token成功"]];} else{if (NumberAuthGetTokenCallback) {NumberAuthGetTokenCallback([code UTF8String] ,[dataStirng UTF8String]);NumberAuthGetTokenCallback = nil;}[[TXCommonHandler sharedInstance] hideLoginLoading];[self LogMessage:[NSString stringWithFormat:@"获取登录Token失败 "]];}[self LogMessage:[NSString stringWithFormat:@"授权框框操作日志msg：%@ code %@",dataStirng,code]];}];}];}
-(void)MobileNumberAuthiOS_Dispose{[self.rootViewController dismissViewControllerAnimated:YES completion:nil];
}
#pragma mark - LifeCycle
+(instancetype)sharedManager {static dispatch_once_t onceToken;static AliMobileNumberAuth *instance;dispatch_once(&onceToken, ^{instance = [[AliMobileNumberAuth alloc] init];});return instance;
}
8.2 c# 代码
using System;
using System.Runtime.InteropServices;
using AOT;
using Bao.Debug;
using JetBrains.Annotations;namespace Bao.Account.SDK
{public class MobileNumberAuthiOS {#region 初始化🇭相关public static MobileNumberAuthiOS _instance;public static Action<int, string> _initializeCallback;private Action<bool, string> _heckEnvironmentCallback;private Action<bool, string> _getTokenCallback;/// <summary>/// 定义c# 传递到原生的的委托代理，接收ios原生回传的值/// </summary>private delegate void AliMobileAuthLogCallback(string log);private delegate void NumberAuthInitCallback(int success, string msg);#endregion#region Native Methods
#if UNITY_IOS /// <summary>/// 定义 C#调用 ios 原生函数标识 固定写法/// </summary>private const string DLLName = "__Internal";[UsedImplicitly, DllImport(DLLName)]private static extern void MobileNumberAuthiOS_Initialize(string secret, AliMobileAuthLogCallback logCallback,NumberAuthInitCallback initCallback);
#endif#endregionprivate static void InfoLog(string msg){LogFile.get.Log($"阿里一键登录, iOS, {msg}");}public void Initialize(string secret, Action<int, string> callback, bool enableLog){/// C# 调用上面定的调用ios 的函数 ，secret 参数，HandleOnAliMobileAuthLogCallback，HandleOnSmsAuthInitCallback 要传递过去的代理函数MobileNumberAuthiOS_Initialize(secret, HandleOnAliMobileAuthLogCallback, HandleOnSmsAuthInitCallback);}/// <summary>/// 定义C#端的代理函数，用于接收ios 传递过来的值/// </summary>/// <param name="log"></param>[MonoPInvokeCallback(typeof(AliMobileAuthLogCallback))]private static void HandleOnAliMobileAuthLogCallback(string log){InfoLog(log);}[MonoPInvokeCallback(typeof(NumberAuthInitCallback))]private static void HandleOnSmsAuthInitCallback(int success, string msg){InfoLog($"开始初始化回调，success:{success} msg: {msg}");_initializeCallback?.Invoke(success, msg);}}
}private delegate void OnViewClosed(int result, string msg); // [MonoPInvokeCallback(OnViewClosed)]
static void CalledByNativeC(int result, string msg)
{// some logic here
}// ... #if UNITY_IPHONE || UNITY_IOS
[DllImport("__Internal")]
private static extern void SetOnViewClosed(OnViewClosed);
#endif// ...
SetOnViewClosed(CalledByNativeC); // 把C#中的回调函数传给C二 、方案二 UnitySendMessage
2.1 使用 UnitySendMessage 时具有以下限制：
1.通过原生代码，只能调用与以下签名对应的脚本方法：void MethodName(string message);。
2.对 UnitySendMessage 的调用是异步的，并有一帧延迟。
3.如果两个或多个游戏对象具有相同的名称，则在使用 UnitySendMessage 时可能导致冲突
4.无论使用什么方式调用
UnitySendMessage方法，方法最终会使用主线程运行。
2.2 UnitySendMessage 使用方法
UnitySendMessage("[gameobject_name]", "[method_name]", "[string_param]");
这个方法要求场景中有个特定名称的GameObject对象，同时该对象上应该挂载某个MonoBehaviour脚本，在该脚本中包含有一个特定的方法（如下所示），当然如果该对象上挂载了多个脚本，并且这些脚本中都有该方法，那么这些方法都会被调用的！
2.3 iOS 向C# 发送消息
MessageReceiver （MessageReceiver脚本绑定到MessageReceiver该游戏对象上）
UnitySendMessage("MessageReceiver", "OnMessageReceived", "Hello from iOS!");using UnityEngine;public class MessageReceiver : MonoBehaviour
{public void OnMessageReceived(string message){Debug.Log("Received message from iOS: " + message);}
}2.4 Unity调用iOS原生方法
using UnityEngine;
using System.Runtime.InteropServices;public class NativeMethodCaller : MonoBehaviour
{[DllImport("__Internal")]private static extern void CallNativeMethod(string message);public void CalliOSMethod(string message){CallNativeMethod(message);}
}2.5 ios 实现方法
extern "C" {int CallNativeMethod(const char *msg) {}
}
