一直想实现微信的控制按钮，经历了太多的波折~

效果

1. 非全屏

   
   
   image.png

2. 全屏

   
   
   image.png

具体实现

1.storyboard中 window 的设置

image.png

2.viewcontroller

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3.viewController代码里

//
//  ViewController.swift
//  Window
//
//  Created by fine on 2018/8/7.
//  Copyright © 2018年 fine. All rights reserved.
//

import Cocoa
import SnapKit

class ViewController: NSViewController {



    @IBOutlet weak var controlContainer: NSView!

    override func viewDidLoad() {
        super.viewDidLoad()


        

//        // Do any additional setup after loading the view.
          //注意这里不是window实例的方法，而是NSWindow的类方法
        let close = NSWindow.standardWindowButton(.closeButton, for: .borderless)
        let mini = NSWindow.standardWindowButton(.miniaturizeButton, for: .borderless)
        let zoom = NSWindow.standardWindowButton(.zoomButton, for: .borderless)

         //将控制按钮添加到自定义容器view中
        controlContainer.addSubview(close!)
        controlContainer.addSubview(mini!)
        controlContainer.addSubview(zoom!)

        //这里使用snpkit 的来设置约束
        close?.snp.makeConstraints({ (make) in
            make.centerY.equalTo(controlContainer)
        make.left.equalTo(controlContainer).offset(10)

        })

        mini?.snp.makeConstraints { (make) in
            make.centerY.equalTo(controlContainer)
            make.left.equalTo(close!).offset(20)

        }

        zoom?.snp.makeConstraints({ (make) in
            make.centerY.equalTo(controlContainer)
            make.left.equalTo(mini!).offset(20)

        })

        //设置回调事件
        mini?.action = #selector(min)
        zoom?.action = #selector(click(_:))
    }

    override var representedObject: Any? {
        didSet {
        // Update the view, if already loaded.
        }
    }

    @IBAction @objc func click(_ sender: Any) {

        self.view.window?.toggleFullScreen(self);

        //这里要隐藏titlebar自带的控制按钮（该控制在全屏后 鼠标置顶会出现，所以要隐藏实现和微信一的效果）
        self.view.window?.standardWindowButton(.zoomButton)?.superview?.subviews.forEach({ (itemView) in
            itemView.isHidden = true;
        })


    }

    @objc func min(){
        self.view.window?.performMiniaturize(self)
    }
    
}