recycler view reset items - android -
i've been working on app quite time now. app supposed take family names , measure visit time, constant(30 minutes). have family object holds info such name, number of members , end of visit, represented future milliseconds value. the way i've implemented timers part create class called countdownmanager responsible updating , calculating remaining time families' view holders listed. the problem is, if clean data(holders , dataset) , add new family, family not added countdowntimer class. here image when family added correctly: and here image after clean data , try add new family: here codes adapter, view holder , counddownmanager class: package bikurim.silverfix.com.bikurim.adapters; import android.content.context; import android.graphics.drawable.drawable; import android.support.v4.content.contextcompat; import android.support.v7.widget.helper.itemtouchhelper; import android.util.log; import android.view.layoutinflater; import android.view.view; import and...