Test app for evaluating if apps can access their own OSLog logs via OSLogStore in iOS 14 and/or macOS 11.0.
I can’t get it to work on an iOS device running iOS 14.0 beta 1–6. I can instantiate an OSLogStore and OSLogEnumerator, but the enumerator doesn’t provide any log entries (unless I’m holding it wrong), and I’m seeing this error message in the Xcode console:
On iOS 14.0 beta 7 the sample crashes with:
+[OSLogStore storeWithScope:error:]: unrecognized selector sent to class 0x1fceb5728
Given Xcode 12 beta 7 isn't released yet, I dumped the OSLogStore classs and it would seem the method was removed without an obvious replacement to call.
Error Error Domain=NSCocoaErrorDomain Code=4099
"The connection to service on pid 0 named com.apple.OSLogService
was invalidated." UserInfo={NSDebugDescription=The connection to
service on pid 0 named com.apple.OSLogService was invalidated.}
When running in the iOS simulator, the error message is different:
Error Domain=OSLogErrorDomain Code=9
"Client lacks entitlement to perform operation"
UserInfo={NSLocalizedDescription=Client lacks entitlement
to perform operation, _OSLogErrorInternalCode=14}
Apple engineers have confirmed this is a bug. I hope it will get fixed before the final iOS 14 release.
The code works as expected in the macOS target.
See Peter Steinberger's article: Logging in Swift (08/2020)
