Android class that helps log the number of milliseconds that have elapsed since a reference point.

ElapsedTimeLogger.kt

class ElapsedTimeLogger(private val tag: String = ElapsedTimeLogger::class.simpleName!!) {

    private var startTime = SystemClock.elapsedRealtime()

    /**
     * Logs the number of milliseconds that have elapsed since this [ElapsedTimeLogger] was initialised.
     *
     * The logs are sent to log output (i.e. Logcat) as a debug message.
     */
    fun logElapsedTime() {
        val currentTime = SystemClock.elapsedRealtime()
        val elapsedTime = currentTime - startTime

        Log.d(tag, "Elapsed time in milliseconds = $elapsedTime")
    }
}