Build a FaceID Authentication System in SwiftUI

Create a biometrics authentication system in SwiftUI
In this tutorial, we'll build an authentication system with FaceID and TouchID, and fallback to a login with credentials if FaceID fails or if the device doesn't support biometrics auth.
🔗 Links mentioned in the video:
➡ Firebase Auth tutorial: designcode.io/swiftui-advance...
➡ Local Authentication documentation: developer.apple.com/documenta...
➡ LAContext documentation: developer.apple.com/documenta...
➡ Biometry type documentation: developer.apple.com/documenta...
✏️ Access the written version of this tutorial and the source files:
➡ Part 1: designcode.io/quick-apps-swif...
➡ Part 2: designcode.io/quick-apps-swif...
➡ Part 3: designcode.io/quick-apps-swif...
👩🏻‍💻 Source code on Github:
➡ github.com/stephdiep/Biometri...
🪄 Join our channel and unlock members-only perks:
➡ / @designcodeteam
👋🏻 Let's connect!
➡ Twitter: / diepsteph
🎞 Video timestamps
➡ Part 1 - Create the project and code the LoginView
0:00 - Introduction
2:04 - Create Xcode project
3:34 - Code the LoginView
➡ Part 2 - Code the AuthenticationManager
9:54 - Create the AuthenticationManager
10:57 - Update Info.plist file
12:23 - Get biometryType
15:00 - Connect AuthenticationManager to views
15:56 - Add dynamic button based on biometryType
18:24 - Authenticate with biometrics
22:16 - Error handling
➡ Part 3 - Log in and log out flow
24:35 - Connect function to UI
26:18 - Test the application
28:23 - Credentials login
35:34 - Logged in screen
37:12 - Logout process
37:47 - Conclusion - Taking it further
#faceid #swiftui #tutorial

[@richardmurrills1708]

Thank you, I found this really useful. I've been struggling to work out how to get my app to ask for login every time the app is minimised and this helped with that - I simply checked to see if the app was moved to the background rather than building a logout button.

[@semilife]

Thanks so much Stephanie for fast paced detailed and informative walkthrough of Authentication on iOS devices. Glad to see the informative comments in your source code as I requested previously.

[@mindrhythminc.2609]

Thank you Stephanie! Very clear and through explanation of a complicated topic. Cheers!!

[@ljubomir_micic]

Favourite SwiftUI KZbin channel 😄

[@nancyh4415]

This content is a lifesavior! Thanks!

[@LeviM337]

Amazing content! You’ve got a new subscriber

[@fierce2410]

You rock Stephanie! This was really helpful! One question. At 25:40 when you used Task.init, what is the difference between using Task.init and just Task?

[@noelkumar121]

Hello, this was a great video! Can you tell me where you got the authenticator icons though?

[@DesignCodeTeam]

Hi! If you meant the icon of the app itself, it's from shape.so/. If you meant the FaceID and TouchID icons, they're from SF Symbols (developer.apple.com/sf-symbols/) - Stephanie

[@Timon460]

don't know the reason but it's not showing up images. it's should use sf symbols but button just blank - no image, no text. same situation at real device and simulator. canvas shows fine. did download project from github just make sure it's doesn't work

[@SwadikaWarriorYT]

Thak you , can you make a video on in-app purchases contents and subscriptions ?

[@DesignCodeTeam]

Hi! Thanks for your suggestion, we'll try to cover this tutorial in the future!

[@9mikaela]

what editor do you use? or theme

[@DesignCodeTeam]

Hi! I'm using Xcode and the theme is Default (Dark) - Stephanie

[@marekroslik7412]

I have a problem. "Trailing closure passed to parameter of type 'NSManagedObjectContext' that does not accept a closure" (.onTapGesture { Task.init{...}). file - LoginView

[@rafaelplinio6527]

Thread 1: Fatal error: No ObservableObject of type found. A View.environmentObject(_:) for may be missing as an ancestor of this view. To fix this error, change all the authenticationManager inside the SWITCH (LoginView) statement to AuthenticationManager(). I don't know why it happened to me, maybe xcode version, who knows.

[@GabrielPalOfficial]

The 3 links for the written version of this tutorial are redirecting to the home page.

[@DesignCodeTeam]

Hi Gabriel! The links should work now! Thanks for reporting it - Stephanie

[@nicoletti2000]

I don't get why private(set) so much

[@DesignCodeTeam]

Hi Hudson, private(set) means that the variable can only be set within the class or struct it's defined it. It's good to restrict the setter of the variables so we cannot modify it from external files. - Stephanie

[@chiragpancholi8436]

can you suggest how to install Xcode in windows 10 or suggest any direct link where xcode setup get easily.!!

[@DesignCodeTeam]

Hi! Unfortunately, Xcode is only available on Mac computers. 😬 - Stephanie

[@chiragpancholi8436]

@@DesignCodeTeam that i know i check thats why im asking for solution because i want to try this 🥺

[@Prabhashana]

Dream job iOS developers 💕

[@tariqAlmazyad]

I am living your dream now , and it is awesome ✌🏻😅❤

[@Prabhashana]

@@tariqAlmazyad 😊😂💕

[@rus151980]

Cute and smart girl!