iOS app hangs indefinitely (possibly related to scrollview)

IeuanWalker commented 1 week ago

Description

I've created quite a basic page, that works fine on -

Android physical device (Galaxy Note 8 - android 9)
Android emulator (pixel 8 pro - android 14)
iOS simulator (iPhone 15 pro - 17.5)

But on my physical ios device (iPhone 11 Pro - 17.5.1) when navigating to the page the whole app hangs indefinitely, no error and nothing in the output window

Here is a video showing the issue. The video shows the following -

Working android emulator
Working iOS simulator
Then I screen mirror my physical iOS device that shows it hanging
I then use xcode instruments > system trace. That shows after I press the button to navigate the app starts using 100% CPU
- Here is the output from the trace - SystemTraceRepo.trace.zip
I then use xcode instruments > logging. That shows after I press the button it repeatedly starts logging the same thing every couple of ms even making the tool start lagging
- Dropping "com.apple.UIKit.UIScrollView.OffsetChange" as it isn't used in any transform (not in the config or budgeted?)
- Here is the output from the logging - LoggingRepo.trace.zip

https://github.com/dotnet/maui/assets/6544051/7acb1f6b-de40-4390-acd0-94d614937ac2

Steps to Reproduce

Github repo linked, is the same one used in the video above

Link to public reproduction project repository

https://github.com/IeuanWalker/MauiIosHangingRepo

Version with bug

8.0.61 SR6.1

Is this a regression from previous behavior?

Yes, this used to work in Xamarin.Forms, Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

iOS 17.5.1

Did you find any workaround?

No response

Relevant log output

Logs zipped in description

github-actions[bot] commented 1 week ago

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Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one and thumbs upping the other issue to help us prioritize it. Thank you!

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davidschlabach commented 1 week ago

I'm having a similar issue

I've attached a test app that just has a ListView and items. I can scroll up and down a few times then it locks.

Test.zip

IeuanWalker commented 5 days ago

This is likely a result of a dodgy iOS update.

I reset my phone's settings (Settings > General > Transfer or reset iPhone > rest all settings).

And it all started working as expected. I didn't need to rebuild/ redeploy the app again as it was still on the phone, and the OS version is the same, so not sure what was causing it, but I did waste 3 days trying to work it out 😒

davidschlabach commented 5 days ago

The hanging for me happens in multiple different simulator device sizes and iOS versions.

dotnet / maui