What is the best way to define log TAG constant in Kotlin?

Question

I\'m creating my first Kotlin classes in my Android application. Usually for logging purposes I have a constant with name TAG. What I would do in Java is:

Answer 1

AnkoLogger uses an interface to define the log tag.

interface AnkoLogger {
            /**
             * The logger tag used in extension functions for the [AnkoLogger].
             * Note that the tag length should not be more than 23 symbols.
             */
            val loggerTag: String
                get() = getTag(javaClass)
        }
private fun getTag(clazz: Class<*>): String {
        val tag = clazz.simpleName
        return if (tag.length <= 23) {
            tag
        } else {
            tag.substring(0, 23)
        }
    }
inline fun AnkoLogger.info(message: () -> Any?) {
    val tag = loggerTag
    if (Log.isLoggable(tag, Log.INFO)) {
        Log.i(tag, message()?.toString() ?: "null")
    }
}

You can use it like this:

class MyClass : AnkoLogger {
    fun someFun(){
       info("logging info")
    }
}

Maybe AnkoLogger can give you some ideas to implement a custom logging tool.