效果如下图所示：
用到的插件：（放在Plugins文件夹下，点击下载各个版本）
System.Drawing.dllSystem.Windows.Forms.dllSystem.Deployment.dll（运用基于.Net4.x的dll打包时，需要用到该dll，否则会报错）
代码如下：
using System;using System.Runtime.InteropServices;using UnityEngine;using UnityEngine.UI;public class LayoutManager : MonoBehaviour{[DllImport("user32.dll")]static extern IntPtr GetForegroundWindow();[DllImport("user32.dll")]public static extern bool ShowWindow(IntPtr hwnd, int nCmdShow);private const int SW_HIDE = 0; //hied task barprivate const int SW_RESTORE = 9;//show task barprivate static System.Windows.Forms.NotifyIcon _notifyIcon = new System.Windows.Forms.NotifyIcon();private static int _width = 100, _height = 100;public Button btn;private IntPtr window;private void Start(){btn.onClick.AddListener(delegate{HideTaskBar();});}public void HideTaskBar()//最小化到托盘{try{window = GetForegroundWindow();ShowWindow(window, SW_HIDE);_notifyIcon.BalloonTipText = "AIScanner1.1.0";//托盘气泡显示内容_notifyIcon.Text = "AIScanner";//鼠标悬浮时显示的内容_notifyIcon.Visible = true;//托盘按钮是否可见_notifyIcon.Icon = CustomTrayIcon(Application.streamingAssetsPath + "/icon.png", _width, _height);//托盘图标_notifyIcon.ShowBalloonTip(2000);//托盘气泡显示时间_notifyIcon.MouseClick += notifyIcon_MouseClick;//双击托盘图标响应事件}catch(Exception e){Debug.Log(e.ToString());}}private static System.Drawing.Icon CustomTrayIcon(string iconPath, int width, int height){System.Drawing.Bitmap bt = new System.Drawing.Bitmap(iconPath);System.Drawing.Bitmap fitSizeBt = new System.Drawing.Bitmap(bt, width, height);return System.Drawing.Icon.FromHandle(fitSizeBt.GetHicon());}private void notifyIcon_MouseClick(object sender, System.Windows.Forms.MouseEventArgs e)//点击托盘图标{if (e.Button == System.Windows.Forms.MouseButtons.Left){_notifyIcon.MouseDoubleClick -= notifyIcon_MouseClick;_notifyIcon.Visible = false;ShowWindow(window, SW_RESTORE);}}private void OnDestroy(){_notifyIcon.MouseDoubleClick -= notifyIcon_MouseClick;}}
打包时，注意Unity ->PlayerSetting->Scripting Runtime Version及APi Compatibility Level俩个选项。
