I am using a firebase project for my app, on which users have to create an account to access to the content of the app.
In order to avoid users having to log in each time they launch the app, I put (in the AppDelegate) :
if Auth.auth().currentUser != nil {
self.window = UIWindow(frame: UIScreen.main.bounds)
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let viewController = storyboard.instantiateViewController(withIdentifier: "tabBar")
self.window?.rootViewController = viewController
self.window?.makeKeyAndVisible()
} else {
self.window = UIWindow(frame: UIScreen.main.bounds)
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let viewController = storyboard.instantiateViewController(withIdentifier: "InscriptionViewController")
self.window?.rootViewController = viewController
self.window?.makeKeyAndVisible()
}
And this piece of code did work for the past months but now it is not (all my pods are up to date)
Why is it not working anymore ?
Your AppDelegate should looks like this.
import UIKit
import Firebase
#UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
FirebaseApp.configure()
if Auth.auth().currentUser != nil {
//your code
}
}
}
Try to download google-info.plist
Related
I am making a newsfeed and when I try to add a post it appears this alert[SIGABRT]and not go to the next viewController to write the post here it's a picture , any idea?
and those are some ss from the breakpoint and exception.
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
FirebaseApp.configure()
let authListener = Auth.auth().addStateDidChangeListener { auth, user in
let storyboard = UIStoryboard(name: "Main", bundle: nil )
if user != nil {
UserService.observeUserProfile(user!.uid) { UserProfile in
UserService.currentUserProfile = UserProfile
}
//
let controller = storyboard.instantiateViewController(withIdentifier: "MainTabBarController") as! UITabBarController
self.window?.rootViewController = controller
self.window?.makeKeyAndVisible()
} else {
UserService.currentUserProfile = nil
let controller = storyboard.instantiateViewController(withIdentifier: "MenuViewController") as! ViewController
self.window?.rootViewController = controller
self.window?.makeKeyAndVisible()
}
}
return true
}
}
This question already has answers here:
Removing NavigationController Programmatically
(2 answers)
Closed 4 years ago.
I have to remove UINavigationController from my app to add UITabBarController and keep
my if statement works as is.
My Code :
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
if UserDefaults.standard.value(forKey: "URL") == nil
{
let viewController = storyboard.instantiateViewController(withIdentifier: "ViewController") as! ViewController
let navController = UINavigationController(rootViewController: viewController)
self.window?.rootViewController = navController
self.window?.makeKeyAndVisible()
}else{
let viewController = storyboard.instantiateViewController(withIdentifier: "ChannelsViewController") as! ChannelsViewController
let navController = UINavigationController(rootViewController: viewController)
self.window?.rootViewController = navController
self.window?.makeKeyAndVisible()
}
return true
}
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
if UserDefaults .standard .value(forKey: "URL") == nil
{
let viewController = storyboard.instantiateViewController(withIdentifier: "ViewController") as! ViewController
self.window?.rootViewController = viewController
self.window?.makeKeyAndVisible()
}else{
let viewController = storyboard.instantiateViewController(withIdentifier: "ChannelsViewController") as! ChannelsViewController
self.window?.rootViewController = viewController
self.window?.makeKeyAndVisible()
}
return true
}
I am setting up a MainViewController holding multiple ViewControllers the following way:
#UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
let pageController = UIPageViewController(
transitionStyle: UIPageViewControllerTransitionStyle.scroll,
navigationOrientation: UIPageViewControllerNavigationOrientation.horizontal,
options: nil
)
let navigationController = MainViewController(rootViewController: pageController)
navigationController.view.backgroundColor = UIColor.white
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let leftView = storyboard.instantiateViewController(withIdentifier: "VC1")
let middleView = storyboard.instantiateViewController(withIdentifier: "VC2")
let rightView = storyboard.instantiateViewController(withIdentifier: "VC3")
navigationController.viewControllerArray = [leftView, middleView, rightView]
self.window!.rootViewController = navigationController
self.window!.makeKeyAndVisible()
return true
}
}
My MainViewController also has what is supposed to be a floating button. I have aded this in the storyboard (see picture below). The problem is that the button is not showing. How do i make it show?
I know that somehow this problem is related to the fact that I adding MainViewController in the AppDelegate, but I am not sure how that is hiding the buttons.
You aren't creating your MainViewController instance from the storyboard, you are just creating it with a call to its initialiser. This means that none of your storyboard elements will be loaded
You need something like:
let navigationController = storyboard.instantiateViewController(withIdentifier: "Main")
navigationController.viewControllers = [pageController]
I have few view controllers embedded in UINavigationController. The first view controller is login page. The second view controller is the home page. I want initialview controller as second view controller when the user is already logged in.
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool
{
// Override point for customization after application launch.
if let data = Locksmith.loadDataForUserAccount(userAccount: "someString")
{
if let userAccessToken = data["accessToken"]
{
if (userAccessToken as! String) != ""
{
let initialViewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "HomePageViewController") as! HomePageViewController
loginResponse = LoginResponse()
loginResponse?.UserAccessToken = userAccessToken as? String
self.window = UIWindow(frame: UIScreen.main.bounds)
self.window?.rootViewController = initialViewController
self.window?.makeKeyAndVisible()
}
}
}
return true
}
The problem is the subsequent view controllers are not embedded in navigation controller. Since it is not embedded in navigation controller I am not able to goback from one view controller to the other.
Add this in App delegate
first check user already login or not, if login then execute this code
let mainStoryBoard = UIStoryboard(name: "Main", bundle: nil)
let redViewController = mainStoryBoard.instantiateViewControllerWithIdentifier("respectiveIdentifier") as! ViewController
let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
appDelegate.window?.rootViewController = redViewController
Use this in App Delegate and add an extension of UIStoryboard.
func checkForAlreadyLogin() {
let dashBoardScreen = UIStoryboard.dashBoardScreen()
let loginController = UIStoryboard.loginController()
if UserDefaults.standard.bool(forKey: UserDefaultValues().LOGINSTATUS){
self.window!.rootViewController = dashBoardScreen
}else {
self.window!.rootViewController = loginController
}
}
public extension UIStoryboard {
class func mainStoryboard() -> UIStoryboard { return UIStoryboard(name: "Main", bundle: Bundle.main) }
class func dashBoardScreen() -> HomeViewController?{
return mainStoryboard().instantiateViewController(withIdentifier: "HomeViewController") as? HomeViewController
}
internal class func loginController() -> LoginViewController?{
return mainStoryboard().instantiateViewController(withIdentifier: "LoginViewController") as? LoginViewController
}
}
Just call this checkForAlreadyLogin() method in 'didFinishLaunchingWithOptions'.
Also remember to set StoryboardID in the storyboard for each viewController.
This code did the trick for me.
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
if let data = Locksmith.loadDataForUserAccount(userAccount: "someString")
{
if let userAccessToken = data["accessToken"]
{
if (userAccessToken as! String) != ""
{
let initialViewController = UIStoryboard(name: "Main", bundle: Bundle.main).instantiateViewController(withIdentifier: "HomePageViewController") as! HomePageViewController
let navigationController = self.window?.rootViewController as! UINavigationController
navigationController.pushViewController(initialViewController, animated: true)
}
}
}
return true
}
Hi I have made a ViewController.
But I don't know how to add very first view right after an app is tapped.
I added below codes in ViewController.swift
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let controller = storyboard.instantiateViewController(withIdentifier: "FirstViewController")
self.present(controller, animated: true, completion: nil)
the FirstViewController appears after the app tapped and shows white background for about a second.
When you first launch your app, the LaunchScreen.storyboard is displayed, as a transition while your app is loading. You can customise this in Interface Builder.
check the option 'is initial view Controller' for that firstViewController from the storyboard.
You can set initial view controller programmatically or via storyboard
Method 1:programmatically--
Set storyboard-identifire for Viewcontroller in Main.storyboard file
like
After that set rootviewController in Appdelegate class.
import UIKit
#UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
window = UIWindow(frame: UIScreen.main.bounds)
let mainStoryBoard = UIStoryboard(name: "Main", bundle: nil)
let redViewController = mainStoryBoard.instantiateViewController(withIdentifier: "ViewController") as! ViewController
window?.rootViewController = redViewController
window?.makeKeyAndVisible()
return true
}
}
For setting up with navigation controller use UINavigationController -
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
window = UIWindow(frame: UIScreen.main.bounds)
let mainStoryBoard = UIStoryboard(name: "Main", bundle: nil)
let viewController = mainStoryBoard.instantiateViewController(withIdentifier: "viewController") as! viewController
let navigationController = UINavigationController(rootViewController: viewController)
window?.rootViewController = navigationController
window?.makeKeyAndVisible()
return true
}
Method 2:Via storyboard--
Go to respective storyboard & select Is Initial View Controller