yichael_smartbow/Assets/BowArrow/Scripts/Manager/LoginMgr/WeChatLoginHelper.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Runtime.InteropServices;
using System;
using AOT;
public class WeChatLoginHelper
{
   
    public static void Login()
    {
#if UNITY_ANDROID
        using (var sdk = new AndroidJavaClass("com.xmjssvr.BowArrow.mi.WeChatSDK")) sdk.CallStatic("WeChatLogin");
#endif

#if UNITY_IPHONE
        if (!IsWechatInstalled_iOS())
        {
            Debug.Log("微信未安装");
            return;
        }
        WXResultHandler handler = new WXResultHandler(resultHandler);
        IntPtr fp = Marshal.GetFunctionPointerForDelegate(handler);
        _WechatLogin(fp);
#endif
    }

    public static void OnLoginResp(string code)
    {
        LoginView.ins?.OnWxLoginResp(code);
    }



#if UNITY_IPHONE
    //这个方法就是引用在 xcode 中编写的方法,与 iOS 连接的桥梁
    [DllImport("__Internal")]
    private static extern void _WechatLogin(IntPtr resultHandler);

    [DllImport("__Internal")]
    private static extern bool IsWechatInstalled_iOS();

    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
    public delegate void WXResultHandler(string resultString);
    [MonoPInvokeCallback(typeof(WXResultHandler))]
    static void resultHandler(string content)
    {
        string[] args = content.Split(';');

        switch (args[0])
        {
            case "0":
                //WXLoginState.OK
                //Debug.Log("token:" + args[1]);
                LoginView.ins?.OnWxLoginResp(args[1]);
                break;
            case "-2":
                //WXLoginState.Denied
                Debug.Log(args[1]);
                break;
            case "-4":
                //WXLoginState.Cancel
                Debug.Log(args[1]);
                break;
            default:
                //WXLoginState.Other
                Debug.Log(args[1]);
                break;

        }
    }
  
    public enum WXLoginState
    {
        OK,
        Denied = -2,
        Cancel = -4,
        Other = -1

    }
#endif
}