the process is :
1 the user login with touch id
2 the user logout (logout dismiss to login)
then the app autotrigger touch id with success response (this not happen in the emulators) HELP!!
this is my listener on login viewcontroller
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
if authenticationContext.canEvaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, error: &error) && DataContainerSingleton.sharedDataContainer.fingerPrintEnabled == "SI"{
self.touchIdListener()
}
}
with
func touchIdListener(){
authenticationContext.evaluatePolicy(
.deviceOwnerAuthenticationWithBiometrics,
localizedReason: self.valFromCurrentLanguaje(valor: "LOGIN_FINGER_MSG"),
reply: { [unowned self] (success, error) -> Void in
if( success ) {
let keychain = KeychainSwift()
let data = keychain.get(Constants.USER_KEY)?.components(separatedBy: ",")
DispatchQueue.main.async {
self.showProgress(text: Constants.EMPTY_STRING)
}
self.fromTouchId = true
self.loginBL.startLogin(email: (data?[0])!, password: data?[1])
}else {
// Check if there is an error
if let error = error {
print("\(error.localizedDescription)")
}
}
})
}
So the solution was change the dismiss
self.dismiss(animated: true, completion: nil)
for a new instance
var storyboard = UIStoryboard()
let vc : LoginViewController
if (Constants.IS_IPAD) {
storyboard = UIStoryboard.init(name: "LoginIpad", bundle: nil)
vc = storyboard.instantiateViewController(withIdentifier: "ipadViewController") as! LoginViewController
} else {
storyboard = UIStoryboard.init(name: "Login", bundle: nil)
vc = storyboard.instantiateViewController(withIdentifier: "iphoneViewController") as! LoginViewController
}
let navigationController = UINavigationController(rootViewController: vc)
self.present(navigationController, animated: true, completion: nil)
Related
I have a ViewController called Home, in Home viewDidAppear have a function CheckStatus that I need to call every time it received a specific notify.
So currently in AppDelegate, I call this code to present Home anytime the notify is received, which cause memory leaking and crashes:
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let controller = storyboard.instantiateViewController(withIdentifier: "MainTabBarController") as! MainTabBarController
//Home is the first ViewController of the TabBar
self.window?.rootViewController = controller
What is the solution for this?
Updated ViewDidAppear and it's functions
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
self.tabBarController?.tabBar.isHidden = false
setupTabbar() //setup tab bar UI
self.locationService.getLocation()
self.checkRequestStatus()
self.navigationController?.setNavigationBarHidden(false, animated: animated)
}
func checkRequestStatus(){
API.checkRequestStatus{ [weak self] json, error in
if let error = error {
}else {
if let json = json {
let status = json[Const.STATUS_CODE].boolValue
if (!API.isSuccess(response: json)){
if (API.getErrorCode(response: json) == Const.INVALID_TOKEN){
let alert = UIAlertController(title: "Message".localized(), message: "You have logged in from another device. Please login again.", preferredStyle: UIAlertController.Style.alert)
alert.addAction(UIAlertAction(title: "OK".localized(), style: UIAlertAction.Style.default, handler:
{(action:UIAlertAction!) in
let defaults = UserDefaults.standard
print ("got here")
defaults.set("", forKey: Const.Params.TOKEN)
if self?.presentingViewController != nil {
self?.dismiss(animated: false, completion: {
self?.navigationController!.popToRootViewController(animated: true)
})
}
else {
self?.navigationController!.popToRootViewController(animated: true)
}
}))
self!.present(alert, animated: true, completion: nil)
}
}
let defaults = UserDefaults.standard
if let currency : String = json[Const.CURRENCEY].rawString() {
defaults.set(currency, forKey: json[Const.CURRENCEY].rawString()!)
}
if let cancellation : Int = json[Const.CANCELLATION_FINE].intValue {
let str : String = String(cancellation)
defaults.set(str, forKey: Const.CANCELLATION_FINE)
}
if(status){
let requestDetail: RequestDetail = RequestDetail()
let jsonAry:[JSON] = json[Const.DATA].arrayValue
let defaults = UserDefaults.standard
if jsonAry.count > 0 {
let driverData = jsonAry[0]
if driverData.exists() {
defaults.set(driverData["request_id"].stringValue, forKey: Const.Params.REQUEST_ID)
defaults.set(driverData["provider_id"].stringValue, forKey: Const.Params.DRIVER_ID)
requestDetail.initDriver(rqObj: driverData)
}
let invoiceAry:[JSON] = json[Const.INVOICE].arrayValue
if invoiceAry.count > 0 {
let invoiceData = invoiceAry[0]
defaults.set(invoiceData.rawString(), forKey: Const.CURRENT_INVOICE_DATA)
requestDetail.initInvoice(rqObj: invoiceData)
}
self?.processStatus(json: json, tripStatus:requestDetail.tripStatus)
} else {
requestDetail.tripStatus = Const.NO_REQUEST
let defaults = UserDefaults.standard
defaults.set(Const.NO_REQUEST, forKey: Const.Params.REQUEST_ID)
}
}
}
}
}
}
You are force-unwrapping self:
self!.present(alert, animated: true, completion: nil) First see if your app still crashes when your replace the call with self?..
I am running into the issue of my viewcontrollers not showing up even though the function calling the viewcontrollers seem to be running. The error I receive in the console is:
Warning: Attempt to present on whose view is not in the window hierarchy!
I have tried the suggestions on the "Attempt to present UIViewController on UIViewController whose view is not in the window hierarchy" thread without any progress. I am running everything programmatically.
func handleNewPage(){
print("this code works")
let uid = Auth.auth().currentUser?.uid
ref = Database.database().reference()
let usersReference = ref.child("patient").child((uid)!)
if usersReference.child("Doctor Code") != nil {
func presentNewPage(){
let firstPage = LandingPage()
let navCon = UINavigationController(rootViewController: firstPage)
present(navCon, animated: true, completion: nil)
}
presentNewPage()
print("PRINT")
} else{
let newPage = PresentViewController() // doctor reg page
let navController = UINavigationController(rootViewController: newPage)
present(navController, animated: true, completion: nil)
}
}
The function is called and the print statements come out valid. Yet, the viewcontrollers will not appear.
You have to create presentNewPage() function outside of your if ???
if usersReference.child("Doctor Code") != nil {
func presentNewPage(){
let firstPage = LandingPage()
let navCon = UINavigationController(rootViewController: firstPage)
present(navCon, animated: true, completion: nil)
}
presentNewPage()
print("PRINT")
} else{
let newPage = PresentViewController() // doctor reg page
let navController = UINavigationController(rootViewController: newPage)
present(navController, animated: true, completion: nil)
}
change it like this
func presentNewPage(){
let firstPage = LandingPage()
let navCon = UINavigationController(rootViewController: firstPage)
present(navCon, animated: true, completion: nil)
}
func handleNewPage(){
print("this code works")
let uid = Auth.auth().currentUser?.uid
ref = Database.database().reference()
let usersReference = ref.child("patient").child((uid)!)
if usersReference.child("Doctor Code") != nil {
presentNewPage()
print("PRINT")
} else{
let newPage = PresentViewController() // doctor reg page
let navController = UINavigationController(rootViewController: newPage)
present(navController, animated: true, completion: nil)
}
}
I want switch user to another page
I use this code :
let storyBoard = UIStoryboard(name: "Main", bundle: nil)
let vcAboutUs = storyBoard.instantiateViewController(withIdentifier: "ViewControllerIndex")
self.present(vcAboutUs, animated: true, completion: nil)
But after run project i am getting Thread 1: signal SIGABRT error and simulator crashed
Image : https://i.stack.imgur.com/d1uIT.jpg
Full code :
DispatchQueue.global(qos: .background).async {
let getJsonLogin = GetData()
let result = getJsonLogin.getJson(urlGet: AppDelegate.ADDRESS+"/index.php", urlData: "mobile="+mobile+"&code="+getCode+"") { result in
DispatchQueue.main.async {
if(result == nil){
self.progressText.text = "Error";
} else {
if((result!["error"]!) == "true"){
self.progressTextCode.text = result!["message"]!;
} else {
let storyBoard = UIStoryboard(name: "Main", bundle: nil)
let vcAboutUs = storyBoard.instantiateViewController(withIdentifier: "ViewControllerIndex")
self.present(vcAboutUs, animated: true, completion: nil)
}
}
}
}
Did you add the name of VC to the storyboard?
I have a function, whereby I check if the UserDefaults are set and if not a new View Controller opens and presents a login screen which will set the user defaults.
My problem is the view controller does not Instantiate but I get a print "User not registered"
func checkUserAccount() {
let defaults = UserDefaults.standard
let accountName = defaults.bool(forKey: "PUserAccountName")
let accountPassword = defaults.bool(forKey: "PUserAccountPassword")
if accountName == true && accountPassword == true {
print("User Registered")
} else {
let storyboard: UIStoryboard = UIStoryboard(name: "PolTRiM", bundle: nil)
let vc: StudentLoginVC = storyboard.instantiateViewController(withIdentifier: "studentLogin") as! StudentLoginVC
vc.modalPresentationStyle = .custom
vc.modalTransitionStyle = .crossDissolve
self.present(vc, animated: true, completion: { _ in })
print("User not registered")
}
}
Any thoughts?
Have you double checked UIStoryBoard name and UIViewController identifier if it's written correctly? Otherwise this code is working for me
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let viewController = storyboard.instantiateViewController(withIdentifier :"MyViewController") as! UIViewController
self.present(viewController, animated: true)
I know this might be a stupid question, just getting started with swift, my question is how shall i proceed to move the user from Login screen to ViewControllerwith slideoutMenu having SWRevealViewController as Class.
Image
func handleLogin(){
if let loginVCobj = self.containerCustom.currentViewController
as? LoginClass
{
guard let loginEmail = loginVCobj.LoginName.text else{
print("No Login Name to submit")
return
}
guard let loginPassword = loginVCobj.LoginPassword.text else {
print("No Login Password to submit")
return
}
Auth.auth().signIn(withEmail: loginEmail, password:
loginPassword){ (user, error) in
if error != nil{
print(error)
return
}
print("user Logged in")
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let secondViewController =
storyboard.instantiateViewController(withIdentifier:
"SWBlankRevealVCStoryBoard") as! SWRevealViewController
self.present(secondViewController, animated: true,
completion: nil)