How do I get difference between two dates in android?, tried every thing and post

Question

I saw all the post in here and still I can\'t figure how do get difference between two android dates.

This is what I do:

long diff = date1.getTime()          


        

Answer 1

written in Kotlin: if you need difference between 2 dates and don't care about the dates itself ( good if you need to do something in the app,based on time from other operation time that was saved in shared preferences for example). save first time :

val firstTime:Long= System.currentTimeMillis()

save second time:

val now:Long= System.currentTimeMillis()

calculate the miliseconds between 2 times:

val milisecondsSinceLastTime: Long =(now-lastScrollTime)