gistfile1.txt

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
#if UNITY_IOS
using UnityEngine.iOS;
#endif

public class IPhoneXCheck : MonoBehaviour {

	protected bool IPhoneX() {
		#if UNITY_LUNA
		var ratio = Bridge.Script.Get<float>("window.devicePixelRatio || 1");
		var w = Bridge.Script.Get<float>("window.screen.width * ratio");
		var h = Bridge.Script.Get<float>("window.screen.height * ratio");

		if (Bridge.Script.Get<bool>("navigator.userAgent.indexOf('iPhone') >= 0")) {
			if (w == 1125 && h == 2436) {
				return true;
			}
		}

		return false;
		#elif UNITY_IOS
		return Device.generation == DeviceGeneration.iPhoneX;
		#else
		return false;
		#endif
	}

	public enum Mode {
        Position = 0,
        PreferredHeight = 1,
        TopPadding = 2,
        BottomPadding = 3
    }

    public Mode mode = Mode.Position;
    public float padding = 0;

    [ContextMenu("ForceApply")]
	public void ForceApply() {
		foreach (var o in FindObjectsOfType<iPhoneXCheck>()) {
			o.ApplyAdjusment();
		}
	}

	protected void ApplyAdjusment() {
        if (mode == Mode.Position) {
            var rt = GetComponent<RectTransform>();
            var pos = rt.anchoredPosition;
            pos.y += padding;
            rt.anchoredPosition = pos;
		} else if (mode == Mode.PreferredHeight) {
            var le = GetComponent<UnityEngine.UI.LayoutElement>();
            le.preferredHeight = le.preferredHeight + padding;
		} else if (mode == Mode.TopPadding) {
			var rt = GetComponent<RectTransform>();
			rt.offsetMax = new Vector2(rt.offsetMax.x, rt.offsetMax.y + padding);
		} else if (mode == Mode.BottomPadding) {
			var rt = GetComponent<RectTransform>();
			rt.offsetMin = new Vector2(rt.offsetMin.x, rt.offsetMin.y + padding);
		}
    }

    private void Start() {
        if (IsIPhoneX()) {
            ApplyAdjusment();
        }
    }
}