iOS 13 Swift Tutorial: Understand Swift UI, Property Wrapper & More (@State & @EnvironmentObject)

Get a better understanding of how Swift UI works, what lies behind @State and @EnvironmentObject and how you work with data in and across different views. Bonus: See how to display an Alert View

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✉️ COMMENTS ✉️
If you have questions about the video or Cocoa programming, please comment below.

[jorgesegundorojas]

Dude, this tutorial it's a treasure !

[daLuftie]

Just for information:

BindableObject is changed to ObservableObject.
ObjectBinding is now ObservedObject.

[glebcherkashyn]

so, now in iOS we have "native Rx" and "native flutter". Nice tutorial, thank you! =)

[mattmmilli]

Mind blown around 22:00 🤯🤯

thank you for great example

[dimiutube]

Wow! That was a lot of information! Thanks for the great tutorial!!

[krutomjer]

Niiiice, these tutorials are great. They are binding (wink, wink) all of the frameworks together, the SwiftUI, combine etc

[KhairilUshan]

Great. Thank you, Brian. Can you also please make videos to explain another Swift feature that backed the SwiftUI implementation? Like for example: Function builder, Opaque return type

[thomasengland]

This is great Brian. Can you share how you can use the environment object in multiple views. On a presentation view I’m not getting access to the environment object.

[Rggg-lemon]

has anyone got a link for the swift evolution proposal? i had a look but im not really sure what is it is that i am looking fior

[amit]

Another amazing tutorial. Thank you so much🙏

[АлексейПархоменко-хы]

I have got this problem: Property wrapper type 'UserDefault' does not contain a non-static property named 'wrappedValue'. I have got the latest version of Xcode 11 beta 7. Could you please say we how to fix it?

[myevit]

@propertyWrapper
struct UserDefault<T> {
    let key: String
    let defaultValue:T
    var value:T {
        get{
            return key) as? T ?? defaultValue
        }
        set{
            UserDefaults.standard.set(newValue, forKey: key)
        }
    }

}

gives error: Property wrapper type 'UserDefault' does not contain a non-static property named 'wrappedValue'

[kerk]

How to count the number of rows after filtered by favorite?

[lukassbeataddicts]

Who else think they making Swift more difficult with every update. Swift 3 was comfortable for me but this getting harder and harder.

[DavidNitzscheBell]

nope. That didn't make any sense.