PiliPlus/macos/Runner/AppDelegate.swift

import Cocoa
import FlutterMacOS

@main
class AppDelegate: FlutterAppDelegate {
  override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
    return false
  }

  override func applicationSupportsSecureRestorableState(_ app: NSApplication) -> Bool {
    return true
  }

  override func applicationShouldHandleReopen(_ sender: NSApplication, hasVisibleWindows flag: Bool) -> Bool {
    if !flag {
      for window in NSApp.windows {
        if !window.isVisible {
          window.setIsVisible(true)
        }
        window.makeKeyAndOrderFront(self)
        NSApp.activate(ignoringOtherApps: true)
      }
    }
    return true
  }
}