Perception tracking isssue

[Sevenfortyseven]

Description

Even tho I'm not using @perception framework and also my view is embedded inside WithPerceptionTracking block, I'm still getting
Perceptible state was accessed but is not being tracked. Track changes to state by wrapping your view in a 'WithPerceptionTracking' view. warning. Warning appears when this view is presented, and it also generates warnings when I enter characters in a textfield and simulator becomes unresponsive. what can be an issue here?

package target is the main branch of the project

Checklist

• I have determined that this bug is not reproducible using Swift's observation tools. If the bug is reproducible using the @Observable macro or another tool from the Observation framework, please file it directly with Apple.
• If possible, I've reproduced the issue using the main branch of this package.
• This issue hasn't been addressed in an existing GitHub issue or discussion.

Expected behavior

this code to work smoothly

Actual behavior

I'm getting unexpected warnings and simulator becomes unresponsive while I'm typing in textfield

Destination operating system

iOS 14

Xcode version information

5.1

[stephencelis]

@Sevenfortyseven I'm not sure I understand. Can you zip up an Xcode project that demonstrates the issue and attach it here?

[mbrandonw]

Hi @Sevenfortyseven, I'm going to convert this to a discussion for now. Please feel free to share your project in the discussion if you are able to reproduce for us.

[Sevenfortyseven]

@mbrandonw HI Brandon. I'm not able to reproduce this issue any more. Thank you!
@stephencelis Sorry, I somehow missed your comment, but hopefully everything works perfectly by now

[jerometonnelier]

Hi guys :-) (@mbrandonw @stephencelis @Sevenfortyseven )
Just for the record, since last Xcode/TCA update I get theses errors a lot. Here is a project that I used that gets the error (I must be doing something wrong I'm pretty sure), but since last update, the menu is reaaaaaaaaally slow compared to what it used to.
Thanks for your feedback :-)
MobileMenutest.zip

[mbrandonw]

Hi @jerometonnelier, this project is targeting iOS 16 and using @ObservableState but is not using WithPerceptionTracking anywhere. So this project is not using the tools correctly. Have you read the documentation to see how these tools are meant to be used? Also the warning printed to the console mentions what the fix is too ("Track changes to state by wrapping your view in a 'WithPerceptionTracking' view.").

[jerometonnelier]

Hi @mbrandonw and thanks for the answer. Actually I tried to update an "old" TCA project to a more modern syntax. I saw the @Reducer and @ObservableState stuff, but nothing that stipulates the use of WithPerceptionTracking that should go along with it. I'll try to have a look for it in the documentation. Sorry for the disturbance 😓

[mbrandonw]

If you followed the migration guides you will find the information in this one. And there's a dedicated article here.

[jerometonnelier]

wow thanks a lot, that's so kind of you ❤️ I'll have a look ^^