Unity XCode 9 1024x1024 icon fix

PostProcessXCodeMissingIconFix.cs

#if UNITY_IOS
using UnityEditor.Callbacks;
using UnityEditor;
using System.IO;
using UnityEditor.iOS.Xcode;
using System;
using UnityEngine;

public class PostProcessXCodeMissingIconFix
{
	[PostProcessBuild]
	public static void ChangeXcodePlist(BuildTarget buildTarget, string pathToBuiltProject)
	{
		if (buildTarget == BuildTarget.iOS)
		{
			FileUtil.CopyFileOrDirectory("Assets/Publish/App Icon/iTunesArtwork@2x.png", pathToBuiltProject + "/Unity-iPhone/Images.xcassets/AppIcon.appiconset/Icon-1024.png");

			string xcodeAppIconContentsFile = pathToBuiltProject + "/Unity-iPhone/Images.xcassets/AppIcon.appiconset/Contents.json";
			string xcodeAppIconContentsText = null;
			try
			{
				xcodeAppIconContentsText = File.ReadAllText(xcodeAppIconContentsFile);
			}
			catch (Exception exception)
			{
				Debug.LogFormat(exception.ToString());
			}

			string newString = xcodeAppIconContentsText.Replace("]", ", {\"size\" : \"1024x1024\", \"idiom\" : \"ios-marketing\",\"filename\" : \"Icon-1024.png\", \"scale\" : \"2x\"}, {\"size\" : \"1024x1024\", \"idiom\" : \"ios-marketing\", \"filename\" : \"Icon-1024.png\", \"scale\" : \"1x\" } ]");
			try
			{
				File.WriteAllText(xcodeAppIconContentsFile, newString);
			}
			catch (Exception exception)
			{
				Debug.LogFormat(exception.ToString());
			}
		}
	}
}
#endif