VPN v2

main/TBCMain.swift

@@ -0,0 +1,36 @@
+import UIKit
+import NetworkExtension
+
+class TBCMain: UITabBarController {
+	
+	override func viewDidLoad() {
+		super.viewDidLoad()
+//		perform(#selector(showWelcomeMessage), with: nil, afterDelay: 3)
+		NotifyVPNStateChanged.observe(call: #selector(vpnStateChanged(_:)), on: self)
+		changedState(currentVPNState)
+	}
+	
+	@objc func showWelcomeMessage() {
+		performSegue(withIdentifier: "welcome", sender: nil)
+	}
+	
+	@objc func vpnStateChanged(_ notification: Notification) {
+		changedState(notification.object as! VPNState)
+	}
+	
+	func changedState(_ newState: VPNState) {
+		let stateView = self.tabBar.items?.last
+		switch newState {
+		case .on:        stateView?.badgeValue = "✓"
+		case .inbetween: stateView?.badgeValue = "⋯"
+		case .off:       stateView?.badgeValue = "✗"
+		}
+		if #available(iOS 10.0, *) {
+			switch newState {
+			case .on:        stateView?.badgeColor = .systemGreen
+			case .inbetween: stateView?.badgeColor = .systemYellow
+			case .off:       stateView?.badgeColor = .systemRed
+			}
+		}
+	}
+}