SwiftUI Tutorial: What's the difference between @State, @ObjectBinding, and @EnvironmentObject?

If you want to understand how SwiftUI works with state, start here – this video walks you through how state works, why it matters, and how each of SwiftUI's state options work, all using hands-on code examples so you can see for yourself.

[twostraws]

Questions? Comments? Tweet me @twostraws.

[simonbachmann]

IMPORTANT: ObjectBinding/BindableObject are deprecated now! @ObjectBinding is become @ObservedObject and BindableObject protocol is become ObservableObject as well as willChange become objectWillChange.

[abcd]

If you are learning SwiftUI, you literally to watch this video! This scratched so many cognitive "itches" I had about Swift, it's almost scary. Thank you, thank you, thank you!

[frimpongopokuagyemang]

Saying that this video is "HELPFUL" would be an understatement. However, I have no bigger words. LOL! In short, THANK YOU DUDE! The way you make things clear, is just something else.👌👌👌👌👌

[kevin-u]

I have saved 1 hour while watching you 20 minutes concrete and robust explanatory video. Thank you Paul.

[JVancity]

Been messing around with all three for a few days now, getting things to 'work'! This video really hit the nail on the head and now I truly understand the why. Thanks Paul, you're a legend :)

[nexplusedinburgh]

Wow! Best SwiftUI video in the whole YouTube! Thank you!

[uberunix]

This is an absolutely fantastic explanation for someone like me who doesn't know enough yet to distinguish the significant bits of what the docs are saying. Thank you so much! :D

[ZoeSummersA]

I think this is the best tutorial video you’ve ever made.

[dhavalnena]

Every time I watch your videos it gives me a deeper understanding of the topic explained. Thank you so much!

[koz]

Absolutely great stuff. You're making my Swift-learning experience a lot clearer.

I'm intrigued about "who taught you?" though.

Because I get the feeling you had a good teacher.

(This is where you say you're self-taught too)

[brandonr.]

Been stuck on these concepts for days, this video really help improve my understanding!

[BroadcastYOzZelf]

I'm used .Net's, old Xaml's and to Qt Qml's (super elegant) property bindings. I was exactly looking for an intro on how SwiftUI does this. You found the perfect level between giving an overview and going into detail. Thanks!

[marlhex]

Please make more! I love the way you talk with passion and interest! Also the way you edit the videos with a final touch! Awesome job!!!

[ac]

Best no bs intro (experienced programmer here)

[AndreaCiani]

This is the best video about this things I have ever watched. You make simple and more complicated examples and you describe them extremely well. Congrats and thanks!

[JacksMacintosh]

Oh my goodness. This @EnvironmentObject thing might just save my life. Thank you thank you!

[coolisfoolable]

This is THE best tutorial I've seen so far! And boy I've seen many.

Thanks Paul!

[Nicolas-isgq]

Excellent tutorial, I finally understand these concepts after trying a few other sources. Thanks Paul!

[oliverbarreto]

Great great tutorial... first division university class... core concepts really well explained and introduced vía telling an incremental story... a must watch... Apple should absolutely use this video and upload it to SwiftUI developer library
💪🏻😀😎