@Environment in SwiftUI - What is it? How to use it? (2020)

In this tutorial we will explore what the Environment in SwiftUI is and how we can take advantage of it.
Learn more about the difference between @Environment and @EnvironmentObject:
• @EnvironmentObject in ...

[@KimbrellBrad]

Very useful! Gives a nice understanding of Environment variables. Thank you!

[@joeprince7509]

Great explanation, thank you!

[@JamesHaville]

Hey nice video - can you think of an example where it would be useful to implement something like this? It seems quite powerful but practically I can't think of a use case. E.g. in this example just passing in the actual size you want seems more readable. What are the advantages of doing it this way? Maybe if you have many ChildViews and want to keep the size flexible across the app without having to pass it in to each one?
Thanks - am enjoying your channel!

[@BeyondOnesAndZeros]

Hi James, that’s a great question. In practice I could imagine it for sth. like a theme setting that you want to pass to multiple children views without having to pass it through each of their initializers. Also themes are usually represented by enums or structs which are value types and cannot conform to ObservableObject. So you may consider using @environment if a view is dependent on a type that cannot conform to observableObject.

[@CraigSchubert]

Cool stuff! Didn't completely understand it on the first watching, but things like keypaths are still pretty new to me.

[@BeyondOnesAndZeros]

Awesome! Thanks for your feedback, I think the concept of key paths is definitely worth a separate video. I will try to explain it a bit more in depth there.

[@kasirajan2289]

@@BeyondOnesAndZeros am also waiting for it.

[@BeyondOnesAndZeros]

@@kasirajan2289 I uploaded a video not long ago regarding Keypaths, please have a look: th-cam.com/video/YY7SlOklZzk/w-d-xo.html

[@elyesbensalah1904]

Nice, great explanation and easy sample to understand the fundamentals , excited to see more videos.

[@BeyondOnesAndZeros]

Thank you, Elyes!

[@dmitrygolovin8066]

Great work!

[@andrejkling3886]

Excellent lessons in your channel.... Thank you

[@BeyondOnesAndZeros]

Appreciate your support!

[@RobertHolzapfel]

Thanks a lot !

[@sipanhazim4128]

very helpful thank you
😍

[@BeyondOnesAndZeros]

Thank you, Sipan! :)

[@Moonwalk3003]

🤨