productinfo / kotlinlogger

Smart android logger in kotlin.

KotlinLogger

Smart android logger written in Kotlin language.

Mostly used in Prague based android develpoment company - Quanti for everything. Product is still being actively developed.

Features

• Usable in every JVM language including Java/Kotlin/Scala ...
• Very easy to use
• No more TAGs, but you can still use them
• Easy to extend using your own ILogger interface
• Lot of optional parameters
• Lightweight
• Possibility to print system info
• Send data to Qase LoggingServer
• Every logged exception is logged to own separate file
• Sample app is ready to build

Installation

Click HERE.

Code example

Usage is simple

1. Make sure you have set your applicationId in gradle

android{
  defaultConfig{
    applicationId = "your.cool.app"
    ...
  }
  ...
}

2. Initialise Log and add all needed loggers. Every logger can be initialized using bundle or use default values.

// Log initialisation
Log.initialise(context)

//forwards all log to android logcat
val androidBundle = LoggerBundle(LogLevel.INFO)
Log.addLogger(AndroidLogger(androidBundle))

//default log level is warn
//apply plugins google-services and firebase.crashlytics, copy google-services.json in app/ directory
//download google-services.json from https://console.firebase.google.com/u/0/project/{project_id}/settings/general/android:{project_package}
//add these two lines in app/build.gradle
//  apply plugin: 'com.google.gms.google-services'
//  apply plugin: 'com.google.firebase.crashlytics'
Log.addLogger(CrashlyticsLogger())

//Every LogBundles has ton of options, see javadoc for more
//DayLogBundle logs every day to one separate log file
val dayLogBundle = DayLogBundle(maxDaysSaved = 4)
Log.addLogger(FileLogger(applicationContext, dayLogBundle))

//CircleLogBundle logs to one file until specified size is reached, but may overflow
val rotateBundle = CircleLogBundle(numOfFiles = 7)
Log.addLogger(FileLogger(applicationContext, rotateBundle))

//StrictCircleLogBundle logs to one file until specified size is reached, never overflows but slower
val strictRotateBundle = StrictCircleLogBundle(maxFileSizeMegaBytes = 1)  
Log.addLogger(FileLogger(applicationContext, strictRotateBundle))

//WebLogger logs to Qase LogServer using REST API or WebSockets
//Run your own server and then debug your application remotely
val restBundle = RestLoggerBundle("http://webserver/api/v1/")
val webSocketBundle = WebSocketLoggerBundle("ws://webserver/ws/v1/")
Log.addLogger(WebLogger(choose restBundle or webSocketBundle))

3. Then log as you would normally do - just using another dependency (or log sync using Log.xSync methods)

Log.v("This");
Log.d("is");
Log.i("sample");
Log.i("text", "OWN TAG");
Log.i("that");
Log.i("will");
Log.iSync("be");
Log.w("logged.");
Log.e("wi", Exception()); //throwable

4. Other possibilities

//Enable unchecked crash handling
Log.useUncheckedErrorHandler()

//Delete all logs
FileLogger.deleteAllLogs()

//Print system logs
Log.logMetadata(appContext)

//Use of SendLogDialogFragment
//It can send zip of logs to email or save to sd card 
//WRITE_EXTERNAL_STORAGE permission is needed if you want to save logs to sd card
SendLogDialogFragment.newInstance("[email protected]", deleteLogs = true).show(supportFragmentManager, "TAG")

License

MIT