oslog

Note: This is not a duplicate of the linked questions Goal: I am not looking for a print vs NSLog differences In fact I don't want to use either of them (presently using print ) I am looking for an Apple recommended way, just can't seem to find the command / documentation, I just know it exists. Present implementation: Presently I am using print statements with some global functions Question What is the recommended way / approach to handle errors (I don't want to use NSLog as they would write into the device's console) This is only for debugging purposes during development Take a look at os

I'm trying to log function arguments into os_log like this: func foo(x: String, y: [String:String]) { //... os_log("foo: \(x) \(y.description)", log: OSLog.default, type: .debug) } But getting error: Cannot convert value of type 'String' to expected argument type 'StaticString' So how can I log function arguments, or any other dynamic data? See Logging : Formatting Log Messages To format a log message, use a standard NSString or printf format string, ... and String Format Specifiers for the standard format string specifiers, such as %@ and %d . In your case: os_log("foo: %@ %@", log: .default,

I'm creating logs using Apple's os.log framework. I'm just making logs like: os_log("Update: Lat: %{public}f | Long: %{private}f | RemainingTime: %{public}f ", log: log, type: .default, location.coordinate.latitude, location.coordinate.longitude, UIApplication.shared.backgroundTimeRemaining). I do see the logs in console & debugger. I've read this and I'm successfully able to download the container (just not sure if the container contains what I'm looking for or if this is the correct place to look at). Then I click on Show packages: But after that I only see: I looked into all files. The