Am I able to see what Logger logs from my app when it's running on a device belonging to an external tester if my app doesn't crash? Am I able to see the logs if my app does crash?
I am using Swift with Xcode for iOS.
Does TestFlight show what Logger logs from my app?
Logger, do you mean the print you put in code ?
AFAIK, no.
Logger is a wrapper around os_log and friends, that is, it logs to the unified system log. You can view that in a variety of was:
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By connecting the iOS to a Mac and running Console.
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Or Apple Configurator.
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Or Xcode.
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By triggering a sysdiagnose log, moving the log to a Mac (AirDrop is great for this), unpacking it, and opening the
.logarchivefile in Console. -
In code, you can get log events using the
OSLogframework. On iOS you are restricting to callinginit(scope:)with a scope of.currentProcessIdentifier, meaning you’ll only see log entries for your own process.
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