Kotlin Get Date 7 Days Ago (KGD7DA)

I want to get the date from 7 days ago to today in Kotlin. Any suggestions? This is what I have so far.

Use this function, to get the date of the days you have passed;

fun getDaysAgo(daysAgo: Int): Date {
    val calendar = Calendar.getInstance()
    calendar.add(Calendar.DAY_OF_YEAR, -daysAgo)

    return calendar.time
}

or in this way.

val date = Calendar.getInstance()   // 19-01-2018
date.add(Calendar.DATE, -7)         // 12-01-2018

or it could be like this.

DateTime.now().minusDays(7)

Done.