Logger
This package is a thin wrapper for os.Logger.
Usage
- Define
os.Loggeras an extension ofLoggerwith the property name of the string that the system uses to categorize emitted signposts. - Call
Logger.configure(bundleIdentifier:)to set a string that identifies the subsystem that emits signposts. - Write a message to the log using
os.Loggerdefined in "1."
import Logger
extension Logger {
static var categoryName1: os.Logger { logger() } // The property name automatically becomes the category name
static var categoryName2: os.Logger { logger("Category Name 2") } // Customize the category name
}
struct MyApp: App {
init() {
Logger.configure()
}
var body: some Scene {
WindowGroup {
Text("Hello, logger world!")
.onAppear {
Logger.categoryName1.log(level: .info, "categoryName1's OSLogMessage")
// 1998-06-21 09:41:00.000000+0900 LoggerExample[88450:10207919] [categoryName1] categoryName1's OSLogMessage
Logger.categoryName2.log(level: .info, "Category Name 2's OSLogMessage")
// 1998-06-21 09:41:00.000100+0900 LoggerExample[88450:10207919] [Category Name 2] Category Name 2's OSLogMessage
Logger.categoryName1
.handleLogger { _ in print("some action") }
.log(level: .debug, "categoryName1's OSLogMessage")
}
}
}
}
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