Open Radar

 
Summary:
When I launch my app, I get a [UIFocus] Focus system disabled message in the console log. I haven't tried it on a device.  Happens all the time in the simulator.

The output looks like NSLog, but a breakpoint on NSLog doesn't trigger it.  I tried breakpoints on os_log, to no avial, or setting a breakpoint inside of UIFocus stuff.  

See attached movie.

(and if If possible, could someone tell me what I could break on to see this output (outside of something like 'write', which is so voluminous to not be worth it), so I could do more footwork on figuring out what's going on? I like figuring stuff out for myself when possible :-) )

See video at https://www.dropbox.com/s/[redacted]/focus-system-disabled.mp4?dl=0

Here's output:

2017-06-17 14:09:23.446973-0400 [redacted][61754:3616536] [UIFocus] Focus system disabled
2017-06-17 14:09:23.450257-0400 [redacted][61754:3616536] [UIFocus] Focus system disabled
2017-06-17 14:09:23.501494-0400 [redacted][61754:3616536] [UIFocus] Focus system disabled
2017-06-17 14:09:23.504392-0400 [redacted][61754:3616536] [UIFocus] Focus system disabled
2017-06-17 14:09:23.507017-0400 [redacted][61754:3616536] [UIFocus] Focus system disabled
2017-06-17 14:09:23.740952-0400 [redacted][61754:3616536] [UIFocus] Focus system disabled
2017-06-17 14:09:23.789531-0400 [redacted][61754:3616536] [UIFocus] Focus system disabled
2017-06-17 14:09:23.831244-0400 [redacted][61754:3616536] [UIFocus] Focus system disabled

Steps to Reproduce:
see summary

Expected Results:
see summary

Observed Results:
see summary

Version:
Version 9.0 beta (9M136h)
10.12.5 (16F73)

Notes:


Configuration:
Doesn't happen in Xcode 8

....

Follow-up to my question about setting the breakpoint - I tried regex breakpoints on NSLog.* (no hits), os_log.* (way too many hits), '-\[UIFocus .*\]$' (no symbols to set a breakpoint on). Pondered setting one on write(), but didn't want to slog through _that_ many calls :-) - wondering what an alternative would be.