A library that lets you define the language of relative time, e.g. "5 hours ago" or "1 month from now" and so on.
Note: this library uses kotlin.time.Duration which is, at the time of writing, an experimental API requiring Kotlin 1.3.50 and above.
In code set the language you want to use depending on how far away a given value is from current time. Do this using instances of the TimeRangeFormatter class, like so:
// Deltas between now (inclusive) and an hour from now (exclusive) will use the language "X minutes from now"
val minutesFromNow = TimeRangeFormatter(now inclusiveToExclusive 1.hours) { delta, _, _ ->
"${delta.inMinutes.toInt()} minutes from now"
}
Finally, plug that into an instance of RelativeTime:
val relativeTime = RelativeTime(timeRangeFormatters = listOf(minutesFromNow))
Now any values given to its RelativeTime#from function that fall within the range(s) of the TimeRangeFormatter(s) that it owns will output the language you've defined:
println(relativeTime.from(System.currentTimeMillis().milliseconds + 5.minutes)) // prints "5 minutes from now"
For more examples, see the fakes I've used in my tests.
With Gradle (make sure you have jcenter() set as a repository):
implementation "ca.nihk:relativetime:0.0.6"
With Maven:
<dependency>
<groupId>ca.nihk</groupId>
<artifactId>relativetime</artifactId>
<version>0.0.6</version>
<type>pom</type>
</dependency>