NEW: My new book Pro SwiftUI is out now – level up your SwiftUI skills today! >>

SOLVED: When printing changes, what does "@self changed" mean exactly?

Forums > SwiftUI
@aarku  

I'm using Self._printChanges() to investigate some performance issues. I'm seeing some view bodies get run with only "@self changed" being the reason.

Does this essentially mean that something futher up the graph is getting rendered which causes this to rerender too? Or something else?

Thanks in advance, -Jon

   

@ygeras  

According to documentation it only mentions that besides changed properties @self means that the struct itself was changed

1      

@aarku  

Got it, thanks! I found this documentation finally: https://developer.apple.com/documentation/swift-playgrounds/console-print-debugging#Understand-when-and-why-your-views-change

   

Hacking with Swift is sponsored by Judo

SPONSORED Let’s face it, SwiftUI previews are limited, slow, and painful. Judo takes a different approach to building visually—think Interface Builder for SwiftUI. Build your interface in a completely visual canvas, then drag and drop into your Xcode project and wire up button clicks to custom code. Download the Mac App and start your free trial today!

Try now

Sponsor Hacking with Swift and reach the world's largest Swift community!

Reply to this topic…

You need to create an account or log in to reply.

All interactions here are governed by our code of conduct.

Swift breaks down barriers between ideas and apps, and I want to break down barriers to learning it. I’m proud to make hundreds of tutorials that are free to access, and I’ll keep doing that whatever happens. But if that’s a mission that resonates with you, please support it by becoming a HWS+ member. It’ll bring you lots of benefits personally, but it also means you’ll directly help people all over the world to learn Swift by freeing me up to share more of my knowledge, passion, and experience for free! Become Hacking with Swift+ member.
Click here to visit the Hacking with Swift store >>
 
Unknown user

You are not logged in

Log in or create account
 

Link copied to your pasteboard.