NativeCallProxyFromUnity.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using UnityEngine.UI;
using UnityEngine;

#if UNITY_IOS || UNITY_TVOS
public class NativeAPI {
    [DllImport("__Internal")]
    public static extern void loadedUnity(string status);
}
#endif

public class EventManager : MonoBehaviour
{


    private void Start()
    {
        #if UNITY_IOS && !UNITY_EDITOR
                        NativeAPI.loadedUnity(status);
        #endif
    }
}