2022.02.09 추가

Unity 2020.1 이후 UnityLoader.js 에서 mobile warning 관련 코드가 사라지고

index.html 부분에서 처리하고 있어 해당부분을 삭제하는것으로 간단하게 해결된다.

2020.1 미만 버전에서만 대응 된 코드

아래 파일을

Assets/Editor/RemoveMobileSupportWarningWebBuild.cs  위치시킨다 

아래 출처 참고

출처

https://gist.github.com/JohannesDeml/f551b1e60c59e8472c3e843014d7bd10

// --------------------------------------------------------------------------------------------------------------------
// <copyright file="RemoveMobileSupportWarningWebBuild.cs">
//   Copyright (c) 2021 Johannes Deml. All rights reserved.
// </copyright>
// <author>
//   Johannes Deml
//   public@deml.io
// </author>
// --------------------------------------------------------------------------------------------------------------------

#if !UNITY_2020_1_OR_NEWER //Not needed anymore in 2020 and above
using System.IO;
using UnityEditor;
using UnityEditor.Callbacks;
using UnityEngine;

namespace Supyrb
{
	/// <summary>
	/// removes a warning popup for mobile builds, that this platform might not be supported:
	/// "Please note that Unity WebGL is not currently supported on mobiles. Press OK if you wish to continue anyway."
	/// </summary>
	public class RemoveMobileSupportWarningWebBuild
	{
		[PostProcessBuild]
		public static void OnPostProcessBuild(BuildTarget target, string targetPath)
		{
			if (target != BuildTarget.WebGL)
			{
				return;
			}

			var buildFolderPath = Path.Combine(targetPath, "Build");
			var info = new DirectoryInfo(buildFolderPath);
			var files = info.GetFiles("*.js");
			for (int i = 0; i < files.Length; i++)
			{
				var file = files[i];
				var filePath = file.FullName;
				var text = File.ReadAllText(filePath);
				text = text.Replace("UnityLoader.SystemInfo.mobile", "false");

				Debug.Log("Removing mobile warning from " + filePath);
				File.WriteAllText(filePath, text);
			}
		}
	}
}
#endif

-- 기존 내용 --

유니티 webGL 빌드 후 모바일 디바이스로 접속시 아래와 같은 경고창을 볼 수 있다

Please note that Unity WebGL is not currently supported on mobiles.

Build/UnityLoader.js 를 안쪽에 모바일 디바이스 체크 부분을 수정해 주면 제거가 가능하다

빌드 때 마다 수동으로 수정을 하기는 힘드니 PostProcessBuild 콜백을 사용하여 빌드 후 해당 부분을 수정하도록 할 수있다.

아래 스크립트를 Assets > Editor 폴더에 넣어주면 간단하게 사용 가능하다

using System.IO;
using UnityEditor;
using UnityEditor.Callbacks;

public class PostBuildAction
{
    [PostProcessBuild]
    public static void OnPostProcessBuild(BuildTarget target, string targetPath)
    {
        var path = Path.Combine(targetPath, "Build/UnityLoader.js");
        var text = File.ReadAllText(path);
        text = text.Replace("UnityLoader.SystemInfo.mobile", "false");
        File.WriteAllText(path, text);
    }
}

참조 :

docs.unity3d.com/kr/2018.4/Manual/webgl-browsercompatibility.html

answers.unity.com/questions/1339261/unity-webgl-disable-mobile-warning.html

// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'

Shader "Custom/FlatTransparent" {
	Properties{
		_Color("Main Color", Color) = (1,1,1,1)
		_MainTex("Base (RGB) Trans (A)", 2D) = "white" {}
	}

		SubShader{
			Tags{ "Queue" = "Transparent" "IgnoreProjector" = "False" "RenderType" = "Transparent" }

			/////////////////////////////////////////////////////////
			/// First Pass
			/////////////////////////////////////////////////////////

			Pass {
		// Only render alpha channel
		ColorMask A
		Blend SrcAlpha OneMinusSrcAlpha

		CGPROGRAM
		#pragma vertex vert
		#pragma fragment frag

		fixed4 _Color;

		float4 vert(float4 vertex : POSITION) : SV_POSITION {
			return UnityObjectToClipPos(vertex);
		}

		fixed4 frag() : SV_Target {
			return _Color;
		}

		ENDCG
	}

		/////////////////////////////////////////////////////////
		/// Second Pass
		/////////////////////////////////////////////////////////

		Pass {
			// Now render color channel
			ColorMask RGB
			Blend SrcAlpha OneMinusSrcAlpha

			CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag

			sampler2D _MainTex;
			fixed4 _Color;

			struct appdata {
				float4 vertex : POSITION;
				float2 uv : TEXCOORD0;
			};

			struct v2f {
				float2 uv : TEXCOORD0;
				float4 vertex : SV_POSITION;
			};

			v2f vert(appdata v) {
				v2f o;
				o.vertex = UnityObjectToClipPos(v.vertex);
				o.uv = v.uv;
				return o;
			}

			fixed4 frag(v2f i) : SV_Target{
				fixed4 col = _Color * tex2D(_MainTex, i.uv);
				return col;
			}
			ENDCG
		}
	}

		Fallback "Diffuse"
}

출처: answers.unity.com/questions/290333/transparent-solid-color-shader.html

Ex

특정 RectTransform 안에 있는 오브젝트를 마우스위치로 이동시키고자할때

 if (RectTransformUtility.ScreenPointToLocalPointInRectangle(

            this.transform.parent.GetComponent<RectTransform>(),

            new Vector2(Input.mousePosition.x, Input.mousePosition.y),

            parentCanvase.worldCamera,

            out pos))

        {

            this.transform.localPosition = pos;

        }else

        {

        }

출처:

http://docs.unity3d.com/ScriptReference/RectTransformUtility.ScreenPointToLocalPointInRectangle.html

public void writeStringToFile( string str, string filename )
{
#if !WEB_BUILD
string path = pathForDocumentsFile( filename );
FileStream file = new FileStream (path, FileMode.Create, FileAccess.Write);

StreamWriter sw = new StreamWriter( file );
sw.WriteLine( str );

sw.Close();
file.Close();
#endif 
}


public string readStringFromFile( string filename)//, int lineIndex )
{
#if !WEB_BUILD
string path = pathForDocumentsFile( filename );

if (File.Exists(path))
{
FileStream file = new FileStream (path, FileMode.Open, FileAccess.Read);
StreamReader sr = new StreamReader( file );

string str = null;
str = sr.ReadLine ();

sr.Close();
file.Close();

return str;
}

else
{
return null;
}
#else
return null;
#endif 
}

public string pathForDocumentsFile( string filename ) 
{ 
if (Application.platform == RuntimePlatform.IPhonePlayer)
{
string path = Application.dataPath.Substring( 0, Application.dataPath.Length - 5 );
path = path.Substring( 0, path.LastIndexOf( '/' ) );
return Path.Combine( Path.Combine( path, "Documents" ), filename );
}

else if(Application.platform == RuntimePlatform.Android)
{
string path = Application.persistentDataPath; 
path = path.Substring(0, path.LastIndexOf( '/' ) ); 
return Path.Combine (path, filename);
} 

else 
{
string path = Application.dataPath; 
path = path.Substring(0, path.LastIndexOf( '/' ) );
return Path.Combine (path, filename);
}
}

출처::http://blog.naver.com/nameisljk/110157303742