Editor Editor Extension add button and logo in scene view

Recently I found a wonderful lego project ,

It can be done very simply , Mario 64 Horizontal plate like that 3D Clearance game

In fact, this project is also unity The official template has appeared for a long time , Just have been practicing in the mountains , With very limited knowledge and scanty information

After reading this project logo I really like

So let's make one today

1） The first is inheritance Editor Window

2） And then like this ........ You can't

 3） I wanted to Editor.OnSceneUI, But we still use the more kernel directly . SceneView

    void OnEnable()
    {
        SceneView.duringSceneGui += SceneGUI;
        
    }
    
    void OnDisable()
    {
        SceneView.duringSceneGui -= SceneGUI;
    }

4, In limine scenView It fails to work well , Later, I found that my brother's article got the answer （ The following reference links ）

At first, my brother also used the wrong , Various Canvas GUIContent Plan try , Then he succeeded

    void SceneGUI(SceneView view)
    {
        // In the wrong 
        if (GUILayout.Button("fdsafadsf"))
        {
            
        }
        // It's still wrong 
        GUI.Button(new Rect(10,10,100,100),"11111111");
    }

5）

    //  binding duringSceneGui Etc. code omitted , See github engineering 
    private void SceneGUI(SceneView view)
    {
        Handles.BeginGUI();

6) Oh , by the way , Later used , Inherit Editor, Of OnSceneGUI, It didn't succeed at all .....

I don't know if it's a new version Unity2020 The problem of

7） The final full code

SceneView Of GUI, Just like ordinary OnGui() It's a little different ,GUILayout, EditorGUILayout These help classes , I can only use less

// copyright (c) by [email protected]

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;

public class LolToolsWindows : EditorWindow
{
    [MenuItem("Tools/Lol/Animation Window")]
    public static  void ShowWnd()
    {
        GetWindow<LolToolsWindows>().Show();
    }

    void OnEnable()
    {
        SceneView.duringSceneGui += SceneGUI;
        
    }

    private void OnGUI()
    {
        if (GUILayout.Button((" establish  Animation in Scene")))
        {
            var go = GameObject.Find("LolSceneView");
            if (go == null)
            {
                go = new GameObject("LolSceneView");
            }

            if (go.GetComponent<LolSceneMono>() == false)
            {
                go.AddComponent<LolSceneMono>();
            }

            Selection.activeObject = go;
        }
    }

    void OnDisable()
    {
        SceneView.duringSceneGui -= SceneGUI;
    }

    void SceneGUI(SceneView view)
    {
        //c Reference resources ：https://zhuanlan.zhihu.com/p/124269658
        Handles.BeginGUI();
        GUILayout.BeginArea(view.position); //  Specify the display area as the screen size 
        if (GUILayout.Button("fdsafadsf"))
        {
            
        }
        GUI.Button(new Rect(10,10,100,100),"11111111");
        
        GUILayout.EndArea();
        Handles.EndGUI();
    }
    
    
}

Reference resources ：

unity Scene View Extended display resident GUI - You know