ios - Firebase Notification Swift 3 SecondViewController -

i build firebase notification in app. , successful working. want open if notification data equal "second" open secondviewcontroller in app. how can do? use userinfo did not it.

firebase notification special data: { "view" : "second" } 

this full appdelegate code. thank you. sorry english.

import uikit import firebase import usernotifications  @uiapplicationmain class appdelegate: uiresponder, uiapplicationdelegate {      var window: uiwindow?     static var shared: appdelegate { return uiapplication.shared.delegate as! appdelegate }      func application(_ application: uiapplication, didfinishlaunchingwithoptions launchoptions: [uiapplicationlaunchoptionskey: any]?) -> bool {         firebaseapp.configure()         application.registerforremotenotifications()         requestnotificationauthorization(application: application)         if let userinfo = launchoptions?[uiapplicationlaunchoptionskey.remotenotification] as? nsdictionary {              nslog("[remotenotification] applicationstate: \(applicationstatestring) didfinishlaunchingwithoptions ios9: \(userinfo)")             //todo: handle background notification         }         return true     }      var applicationstatestring: string {         if uiapplication.shared.applicationstate == .active {             return "active"         } else if uiapplication.shared.applicationstate == .background {             return "background"         }else {             return "inactive"         }     }      func requestnotificationauthorization(application: uiapplication) {         if #available(ios 10.0, *) {             unusernotificationcenter.current().delegate = self             let authoptions: unauthorizationoptions = [.alert, .badge, .sound]             unusernotificationcenter.current().requestauthorization(options: authoptions, completionhandler: {_, _ in })         } else {             let settings: uiusernotificationsettings = uiusernotificationsettings(types: [.alert, .badge, .sound], categories: nil)             application.registerusernotificationsettings(settings)         }     } }  @available(ios 10, *) extension appdelegate : unusernotificationcenterdelegate {     // ios10+, called when presenting notification in foreground     func usernotificationcenter(_ center: unusernotificationcenter, willpresent notification: unnotification, withcompletionhandler completionhandler: @escaping (unnotificationpresentationoptions) -> void) {         let userinfo = notification.request.content.userinfo         nslog("[usernotificationcenter] applicationstate: \(applicationstatestring) willpresentnotification: \(userinfo)")         //todo: handle foreground notification         completionhandler([.alert])     }      // ios10+, called when received response (default open, dismiss or custom action) notification     func usernotificationcenter(_ center: unusernotificationcenter, didreceive response: unnotificationresponse, withcompletionhandler completionhandler: @escaping () -> void) {         let userinfo = response.notification.request.content.userinfo         nslog("[usernotificationcenter] applicationstate: \(applicationstatestring) didreceiveresponse: \(userinfo)")         //todo: handle background notification         completionhandler()     } }  extension appdelegate : messagingdelegate {     func messaging(_ messaging: messaging, didrefreshregistrationtoken fcmtoken: string) {         nslog("[remotenotification] didrefreshregistrationtoken: \(fcmtoken)")     }      // ios9, called when presenting notification in foreground     func application(_ application: uiapplication, didreceiveremotenotification userinfo: [anyhashable : any]) {          nslog("[remotenotification] applicationstate: \(applicationstatestring) didreceiveremotenotification ios9: \(userinfo)")         if uiapplication.shared.applicationstate == .active {             //todo: handle foreground notification         } else {             //todo: handle background notification         }     } } 

notification data userinfo
inside usernotificationcenter add code...

let str:string = (userinfo["gcm.notification.imtype"] as? string)!      switch str {     case "first":         let rootviewcontroller = self.window!.rootviewcontroller as! uinavigationcontroller              let storyboard = uistoryboard(name: "main", bundle: nil)             let firstviewcontroller = storyboard.instantiateviewcontroller(withidentifier: "firstid") as! messagestableviewcontroller              rootviewcontroller.pushviewcontroller(firstviewcontroller, animated: true)        case "second":          let rootviewcontroller = self.window!.rootviewcontroller as! uinavigationcontroller          let storyboard = uistoryboard(name: "main", bundle: nil)         let secondviewcontroller = storyboard.instantiateviewcontroller(withidentifier: "secondid") as! secondviewcontroller          rootviewcontroller.pushviewcontroller(secondviewcontroller, animated: true)  default:   print("type else")  }