I just trying to save the user Id and status as true value in UserDefaults when they login or Register with App.
UserDefaults.standard.set(user?.CustID, forKey: "CustID")
UserDefaults.standard.set(true, forKey: "status")
so when the user reopen the app in my Appdelegate I check the Status if it's true then user directly pass on HomeScreen and if the status False its pass on login screen.
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
let status = UserDefaults.standard.bool(forKey: "status")
if (status == true) && (custID != "") {
let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
let nextViewController = storyBoard.instantiateViewController(withIdentifier: "HomeTicketViewController") as! HomeTicketViewController
let navigationController = UINavigationController(rootViewController: nextViewController)
let appdelegate = UIApplication.shared.delegate as! AppDelegate
appdelegate.window!.rootViewController = navigationController
}else {
let storyBoard : UIStoryboard = UIStoryboard(name: "Login", bundle:nil)
let nextViewController = storyBoard.instantiateViewController(withIdentifier: "LoginViewController") as! LoginViewController
let navigationController = UINavigationController(rootViewController: nextViewController)
let appdelegate = UIApplication.shared.delegate as! AppDelegate
appdelegate.window!.rootViewController = navigationController
}
}
I get the status true but i found that The CustID found nil.
Is there any solution for that?
In userdefault if value not found in userdefaults corresponding to key then userdefault return nil and in case of bool it returns false.
In your case, when you app launches, app does not have any value corresponding to custID so you getting nil.
You need to add check like this
if (status == true) && (custID != nil){
:
:
}
The default is false
let status = UserDefaults.standard.bool(forKey: "status")
so status will be false at first , also status being true doesn't mean CustID saved no nil
UserDefaults.standard.set(user!.CustID, forKey: "CustID")
as user may be nil so force-unwrap to verify that
Related
Tell me, please, what am I doing wrong?
There are 3 View:
The user selects his gender
The user enters his weight
Main View Application
After the user has written this data, he gets to the main screen of the application. I want to make the user choose his gender and weight only at the very first launch of the application. To do this, I created a UserSettings model to store the entered values there:
final class UserSettings {
enum SettingsKeys: String {
case userSex
case userWeight
}
static var userSex: String! {
get {
return UserDefaults.standard.string(forKey: SettingsKeys.userSex.rawValue)
}
set {
let defaults = UserDefaults.standard
let key = SettingsKeys.userSex.rawValue
if let sex = newValue {
print("Пол \(sex) добавлен в \(key)")
defaults.set(sex, forKey: key)
} else {
defaults.removeObject(forKey: key)
}
}
}
static var userWeight: String! {
get {
return UserDefaults.standard.string(forKey: SettingsKeys.userWeight.rawValue)
}
set {
let defaults = UserDefaults.standard
let key = SettingsKeys.userWeight.rawValue
if let weight = newValue {
print("Вес \(weight) добавлен в \(key)")
defaults.set(weight, forKey: key)
} else {
defaults.removeObject(forKey: key)
}
}
}
}
In AppDelegate in function didFinishLaunchingWithOptions launchOptions wrote:
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
window = UIWindow(frame: UIScreen.main.bounds)
let defaults = UserDefaults.standard
let skipPageSex = defaults.bool(forKey: UserSettings.userSex)
let skipPageWeight = defaults.bool(forKey: UserSettings.userWeight)
if skipPageSex && skipPageWeight == true {
let mainStoryboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let nextView: MainViewController = mainStoryboard.instantiateViewController(identifier: "MainViewController") as! MainViewController
window?.rootViewController = nextView
self.window?.makeKeyAndVisible()
} else {
let firstStoryboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let firstView: WelcomeViewController = firstStoryboard.instantiateViewController(identifier: "welcomeVC") as! WelcomeViewController
window?.rootViewController = firstView
self.window?.makeKeyAndVisible()
}
return true
}
In the Sex select View in the button action, I wrote:
#IBAction func manSelected(_ sender: UIButton) {
sender.setTitle("Male", for: .normal)
UserSettings.userSex = sender.currentTitle
let defaults = UserDefaults.standard
defaults.setValue(true, forKey: UserSettings.userSex)
defaults.synchronize()
}
And the same for the button with the female choice, only sender.setTitle("Female", for: .normal)
I tried removing UIMainStoryboardFile and UIApplicationSceneManifest in Info.plist and in this case I get just a black screen without errors. In the Storyboard ID I use the same value as in AppDelegate. Please, help
Try something like this. Initial with a TempViewController. Depend on your data, it will segue perform show Gender Picker or go directly to Main. Remember to check the Is Initial View Controller for root Navigation Controller.
This question already has answers here:
Storyboard - refer to ViewController in AppDelegate
(5 answers)
Closed 4 years ago.
if i have two viewControllers and i want when condition succeeded i want to go to another ViewController.
but i want to check every time the app launched so i stored the value on userDefaults and in appDelegate i checked for this value.
when i print the value i get it but i can not go to the desired controller.
func application(_ application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
let active:Bool = defaults.bool(forKey: "activeBooking")
if active {
print("active \(active)")
let rootViewController = self.window!.rootViewController
let mainStoryboard: UIStoryboard = UIStoryboard(name: "Final", bundle: nil)
let setViewController = mainStoryboard.instantiateViewController(withIdentifier: "finalBooking") as! BookingFromCurrentLocationVC
rootViewController?.navigationController?.popToViewController(setViewController, animated: false)
}
return true
}
i print the value in other controller and it return me true(my value) so why i can not go to another controller
You can try this:
In appDelegate and in didFinishLaunching
You can store this value in UserDefault and then check the condition:
if condition == true{
goToVC1()
}else{
goToVC2
}
func goToVC1() {
let storyboard:UIStoryboard = UIStoryboard(name: "Main", bundle: Bundle.main)
let ObjVC1: ViewController = storyboard.instantiateViewController(withIdentifier: "VC1") as! VC1
let navigationController : UINavigationController = UINavigationController(rootViewController: ObjVC1)
self.window?.rootViewController = navigationController
self.window?.makeKeyAndVisible()
}
func goToVC2() {
let storyboard:UIStoryboard = UIStoryboard(name: "Main", bundle: Bundle.main)
let ObjVC2: ViewController = storyboard.instantiateViewController(withIdentifier: "VC2") as! VC2
let navigationController : UINavigationController = UINavigationController(rootViewController: ObjVC2)
self.window?.rootViewController = navigationController
self.window?.makeKeyAndVisible()
}
Add a segue from Navigation controller to desired View Controller (with segue identifier "finalBookingVC") and replace the code inside your if condition with:
self.window?.rootViewController!.performSegue(withIdentifier: "finalBookingVC", sender: nil)
You can initiate your view controller in AppDelegate as below.
Perform your condition check and set the StoryboardID and ViewControllerID as per your requirement.
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
self.window = UIWindow(frame: UIScreen.main.bounds)
//check your condition here and change the Storyboard name and ViewController ID as required
let vc = UIStoryboard.init(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "HomeVCID") as! HomeController
self.window?.rootViewController = vc
self.window?.makeKeyAndVisible()
return true
}
The first thing you need to check if an application is active and already open (top controller is finalBookingVC) then no need to do anything,
second thing finalBookingVC if already available in a stack then no need to push at that time you need to pop view controller.
If finalBookingVC is not available on the stack then you need to push this controller.
func gotoController() {
let navigationController : UINavigationController! = self.window!.rootViewController as! UINavigationController;
let arrViewController = navigationController;
if arrViewController != nil && !(arrViewController?.topViewController is finalBookingVC) {
var finalBookingVCFound:Bool = false;
for aViewController in (arrViewController?.viewControllers)! {
if aViewController is finalBookingVC {
finalBookingVCFound = true;
_ = navigationController?.popToViewController(aViewController, animated: true);
break;
}
}
if !finalBookingVCFound {
let mainStoryboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil);
let objVC:finalBookingVC = mainStoryboard.instantiateViewController(withIdentifier: "finalBookingVC") as! finalBookingVC;
navigationController?.pushViewController(objVC, animated: true);
}
}
}
I have 2 segment in onesignal panel bir EN another FR but in my app have language change and people can change app language everytime in app inside , when I send push from one signal I send by segments but i want to add appdelegate inside language section if user language is English only must be alert English pushes , if user language France only must be alert France pushes.
In my app side language selection string is
let appcurrentlanguage = prefs.value(forKey: "lang") as! String
How can I do it ?
My codes under below
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
//HERE APP LANGUAGE
let appcurrentlanguage = prefs.value(forKey: "lang") as! String
GMSServices.provideAPIKey("xxx")
OneSignal.initWithLaunchOptions(launchOptions, appId: "xxx") { (result) in
let payload = result?.notification.payload
if let additionalData = payload?.additionalData, let actionSelected = additionalData["comes"] as? String {
if actionSelected == "1" {
let mainStoryboardIpad : UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
let initialViewControlleripad : UIViewController = mainStoryboardIpad.instantiateViewController(withIdentifier: "ViewController") as! ViewController
self.window = UIWindow(frame: UIScreen.main.bounds)
self.window?.rootViewController = initialViewControlleripad
self.window?.makeKeyAndVisible()
}else if actionSelected == "2" {
if let newsID = additionalData["id"] as? String {
prefs.setValue(newsID, forKeyPath: "gelenID")
prefs.synchronize()
}
if let newsType = additionalData["type"] as? String {
prefs.setValue(newsType, forKeyPath: "newsType")
prefs.synchronize()
}
}
}
}
sleep(2)
return true
}
i want check in appdelegate.swift file if user logged in showing HomeviewController like Instagram and if not Showing LoginViewController , iam using mysql to save users data and php bridge lang
code in appdalegate.swift
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.
var rootViewController = self.window!.rootViewController
let isUserLoggedIn:Bool = NSUserDefaults.standardUserDefaults().boolForKey("isUserLoggedIn")
if(isUserLoggedIn) {
let mainStoryboard = UIStoryboard(name: "Main" , bundle: nil)
let protectedPage = mainStoryboard.instantiateViewControllerWithIdentifier("goToHome") as! HomeViewController
window!.rootViewController = protectedPage
window!.makeKeyAndVisible()
}
else{
let mainStoryboard = UIStoryboard(name: "Main" , bundle: nil)
let loginViewController = mainStoryboard.instantiateViewControllerWithIdentifier("loginview") as! LoginViewController
window!.rootViewController = loginViewController
window!.makeKeyAndVisible()
}
return true
}
loginviewcontoler.swift
let success:NSInteger = jsonData.valueForKey("success") as! NSInteger
//[jsonData[#"success"] integerValue];
NSLog("Success: %ld", success);
if(success == 1)
{
NSLog("Login SUCCESS");
let prefs:NSUserDefaults = NSUserDefaults.standardUserDefaults()
prefs.setObject(username, forKey: "USERNAME")
prefs.setInteger(1, forKey: "ISLOGGEDIN")
prefs.synchronize()
self.performSegueWithIdentifier("goToHome", sender: self)
ProfileViewController.swift
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(true)
let prefs:NSUserDefaults = NSUserDefaults.standardUserDefaults()
let isLoggedIn:Int = prefs.integerForKey("ISLOGGEDIN") as Int
if (isLoggedIn != 1) {
self.performSegueWithIdentifier("goto_login", sender: self)
}
else
{
self.usernameLabel.text = prefs.valueForKey("USERNAME") as? String
}
}
sorry for long question
Don't use in this situation NSUserDefaults
https://github.com/matthewpalmer/Locksmith
Here is good example of using safe LogIn / LogOut
so, after implementation
if let dictionary = Locksmith.loadDataForUserAccount("accaunt")
{
//go to profile
}
else
{
//go to login
}
Follow step:-
Step 1 :- Create custom SplashViewController set rootViewController SplashViewController
Step 2 :- Write login service call on SplashViewController
Setp 3 :- When you get Login success then just change rootViewController
Setp 4 :- Write one method in AppDelegate For change rootViewController for redirect Homescreen.
Setp 5 :- Call AppDelegate method for go to Homescreen.
You have to do some works.
1. You have to make sure that the user is logged in. to do that when you press the button (login button) use UserDefaults
let userDefault = UserDefaults.standard
userDefault.set(true, forKey: "isLoggedIn")
userDefault.synchronize()
2.When user will launch the app again just check whether the user logged in or not in viewDidAppear method/ viewDidLoad(its your choice which method you will use. most of the time I use viewDidAppear)
let userDefault = UserDefaults.standard
let savedData = userDefault.bool(forKey: "isLoggedIn")
if(savedData){
performSegue(withIdentifier: "segueTest", sender:nil)//here u have decide the which view will show if the user is logged in how. here i used segue.
}else{
viewController = self// this is the main view. just make the object of the class and called it.
}
I hope you know how to prepare segue
Just a concise way of doing the same thing:
func checkIfUserIsLoggedIn() {
if Auth.auth().currentUser == nil {
DispatchQueue.main.async {
// present login controller
let loginVC = LoginVC()
let navController = UINavigationController(rootViewController: loginVC)
self.present(navController, animated: true, completion: nil)
}
return
}
}
I'm developing an app with initial view controller as "Navigation controller". The app contains 2 ideas to implement.
1) From the RegisterViewController, User has to register the mobile no with verification //from sms or call, After verified it enters into HomeViewController( Condition: when the user install the app for the 1st time it shows the RegisterViewController)
2) If the app is already get installed into the iPhone and the user also register the mobile no, then the user opens the same app now the initialViewController must be the HomeViewController
How can I achieve this idea through swift code?
Implement this logic in your appdelegate class:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
let isRegistered = NSUserDefaults.standardUserDefaults().boolForKey("ALLREADY_REGISTER")
if isRegistered == true{
// implement home view controller
let homeViewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewControllerWithIdentifier("HomeVC") as! HomeViewController
self.window?.rootViewController = homeViewController
self.window?.makeKeyAndVisible()
}else{
// implement register view controller
let registerViewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewControllerWithIdentifier("RegisterVC") as! RegisterViewController
self.window?.rootViewController = registerViewController
self.window?.makeKeyAndVisible()
}
return true
}
Then when first time register completed successfully then set bool variable true for the key ALLREADY_REGISTER
NSUserDefaults.standardUserDefaults().setBool(true, forKey: "ALLREADY_REGISTER")`
do like
var viewController: UIViewController!
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject : AnyObject]?) -> Bool {
self.window = UIWindow(frame: UIScreen.mainScreen().bounds)
var storyboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
if NSUserDefaults.standardUserDefaults().objectForKey("notRegistered") == nil
{
viewController = storyboard.instantiateViewControllerWithIdentifier("RegisterViewController")
}
else {
if NSUserDefaults.standardUserDefaults().objectForKey("notRegistered") as! String == "registred"
{
viewController = storyboard.instantiateViewControllerWithIdentifier("HomeViewController")
}
else
{
viewController = storyboard.instantiateViewControllerWithIdentifier("RegisterViewController")
}
// if you want to create the UINavigationController use this
let nav = UINavigationController(rootViewController: viewController)
self.window!.rootViewController = nav
else directly access use this
self.window!.rootViewController = viewController
self.window.makeKeyAndVisible()
// Override point for customization after application launch.
return true
}
on registration page after the success save like
//Save
NSUserDefaults.standardUserDefaults().setObject("registred", forKey: "notRegistered")
you have to change rootViewController instead of initialViewController. when user verified and enters into HomeViewController store flag in NSUserDefaults.then every time in AppDelegate didFinishLaunchingWithOptions check user is already entered in HomeViewController using NSUserDefaults.
let appdelegate = UIApplication.sharedApplication().delegate as! AppDelegate
let mainStoryboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
var homeViewController = mainStoryboard.instantiateViewControllerWithIdentifier("HomeViewController") as! HomeViewController
let nav = UINavigationController(rootViewController: homeViewController)
appdelegate.window!.rootViewController = nav