unity3D接入Sign in with Apple

unity3D接入Sign in with Apple

前言，觉得好的同学别忘了给个好评哦，另外，如果有什么疑问的，欢迎随时提问~~

苹果明确规定2020.6.30之后提交到AppStroe审核的app如接入了第三方登录，则必须接入Sign in with Apple；下面给大家分享一下unity3D接入Sign in with Apple的具体流程:

1、首先是按钮格式必须使用苹果给定的几种，具体可以参考链接 苹果官方登录按钮样式；

2、oc代码：

#import 
#import 
#import "UnityAppController.h"

struct UserInfo
{
     
    const char * userId;
    const char * email;
    const char * displayName;

    const char * idToken;
    const char * error;

    ASUserDetectionStatus userDetectionStatus;
};

typedef void (*SignInWithAppleCallback)(int result, struct UserInfo s1);
API_AVAILABLE(ios(13.0), tvos(13.0))
typedef void (*CredentialStateCallback)(ASAuthorizationAppleIDProviderCredentialState state);

API_AVAILABLE(ios(13.0), tvos(13.0))
@interface UnitySignInWithApple : NSObject<ASAuthorizationControllerDelegate, ASAuthorizationControllerPresentationContextProviding>

@property (nonatomic) SignInWithAppleCallback loginCallback;
@property (nonatomic) CredentialStateCallback credentialStateCallback;

@end

API_AVAILABLE(ios(13.0), tvos(13.0))
static UnitySignInWithApple* _unitySignInWithAppleInstance;

@implementation UnitySignInWithApple
{
     
    ASAuthorizationAppleIDRequest* request;
}

+(UnitySignInWithApple*)instance
{
     
    if (_unitySignInWithAppleInstance == nil)
        _unitySignInWithAppleInstance = [[UnitySignInWithApple alloc] init];
    return _unitySignInWithAppleInstance;
}

-(void)startRequest
{
     
    if (@available(iOS 13.0, tvOS 13.0, *)) {
     
        ASAuthorizationAppleIDProvider* provider = [[ASAuthorizationAppleIDProvider alloc] init];
        request = [provider createRequest];
        [request setRequestedScopes: @[ASAuthorizationScopeEmail, ASAuthorizationScopeFullName]];

        ASAuthorizationController* controller = [[ASAuthorizationController alloc] initWithAuthorizationRequests:@[request]];
        controller.delegate = self;
        controller.presentationContextProvider = self;
        [controller performRequests];
    } else {
     
        // Fallback on earlier versions
    }
}

-(ASPresentationAnchor)presentationAnchorForAuthorizationController:(ASAuthorizationController *)controller
{
     
    return _UnityAppController.window;
}

-(void)authorizationController:(ASAuthorizationController *)controller didCompleteWithAuthorization:(ASAuthorization *)authorization
{
     
    if (self.loginCallback)
    {
     
        struct UserInfo data;

        if (@available(iOS 13.0, tvOS 13.0, *)) {
     
            ASAuthorizationAppleIDCredential* credential = (ASAuthorizationAppleIDCredential*)authorization.credential;
            NSString* idToken = [[NSString alloc] initWithData:credential.identityToken encoding:NSUTF8StringEncoding];
            NSPersonNameComponents* name = credential.fullName;

            data.idToken = [idToken UTF8String];

            data.displayName = [[NSPersonNameComponentsFormatter localizedStringFromPersonNameComponents:name
                                                                                                   style:NSPersonNameComponentsFormatterStyleDefault
                                                                                                 options:0] UTF8String];
            data.email = [credential.email UTF8String];
            data.userId = [credential.user UTF8String];
            data.userDetectionStatus = credential.realUserStatus;
            data.error = "";
            self.loginCallback(1, data);
        } else {
     
            // Fallback on earlier versions
        }
    }
}

-(void)authorizationController:(ASAuthorizationController *)controller didCompleteWithError:(NSError *)error
{
     
    if (self.loginCallback)
    {
     
        // All members need to be set to a non-null value.
        struct UserInfo data;
        data.idToken = "";
        data.displayName = "";
        data.email = "";
        data.userId = "";
        data.userDetectionStatus = 1;
        data.error = [error.localizedDescription UTF8String];
        self.loginCallback(0, data);
    }
}

@end

void UnitySignInWithApple_Login(SignInWithAppleCallback callback)
{
     
    if (@available(iOS 13.0, tvOS 13.0, *)) {
     
        UnitySignInWithApple* login = [UnitySignInWithApple instance];
        login.loginCallback = callback;
        [login startRequest];
    } else {
     
        struct UserInfo data;
        data.idToken = "";
        data.displayName = "";
        data.email = "";
        data.userId = "";
        data.userDetectionStatus = 1;
        data.error = "";
        callback(2, data);
    }
}

3、然后是C#代码，由于我们项目是用toLua开发的，所以这里的C#提供Lua接口

using System;
using System.Runtime.InteropServices;
using AOT;
using UnityEngine;

public class SignInWithApple
{
     
    private static LuaFunction s_LoginCompletedCallback;

    public enum UserDetectionStatus
    {
     
        LikelyReal,
        Unknown,
        Unsupported
    }

    public enum UserCredentialState
    {
     
        Revoked,
        Authorized,
        NotFound
    }

    public struct UserInfo
    {
     
        public string userId;
        public string email;
        public string displayName;

        public string idToken;
        public string error;

        public UserDetectionStatus userDetectionStatus;
    }

    public delegate void LuaFunction(int result,string str);

    private delegate void LoginCompleted(int result, UserInfo info);

    [MonoPInvokeCallback(typeof(LoginCompleted))]
    private static void LoginCompletedCallback(int result, [MarshalAs(UnmanagedType.Struct)]UserInfo info)
    {
     
        UserInfo userInfo = new UserInfo
        {
     
            idToken = info.idToken,
            displayName = info.displayName,
            email = info.email,
            userId = info.userId,
            error = info.error,
            userDetectionStatus = info.userDetectionStatus
        };

        string str = JsonUtility.ToJson(userInfo);
        s_LoginCompletedCallback(result,str);//result:0-失败，1-成功，2-iOs版本低于13
        s_LoginCompletedCallback = null;
    }

    public static void Login(LuaFunction callback)
    {
     
        if (s_LoginCompletedCallback != null)
            throw new InvalidOperationException("Login called while another login is in progress");
        s_LoginCompletedCallback = callback;
        LoginInternal();
    }

    private static void LoginInternal()
    {
     
        IntPtr cback = IntPtr.Zero;
        LoginCompleted d = LoginCompletedCallback;
        cback = Marshal.GetFunctionPointerForDelegate(d);

        UnitySignInWithApple_Login(cback);
    }

    [DllImport("__Internal")]
    private static extern void UnitySignInWithApple_Login(IntPtr callback);
}

4、在toLua的CustomSettings（这里的类名可以自定义，我用的是toLua默认的）类中注册SignInWithApple后就可以在Lua中调用了:

例如,SignInWithApple.Login(function(result,userInfo) end)。