Every other useful Kotlin Extension useful for daily stuff

BindingAdapters.kt

/**
 * Converts milliseconds to formatted mm:ss
 *
 * @param value, time in milliseconds.
 */
@BindingAdapter("elapsedTime")
fun TextView.setElapsedTime(value: Long) {
    val seconds = value / 1000
    text = if (seconds < 60) seconds.toString()
            else DateUtils.formatElapsedTime(seconds)
}