Fragment lifecycle Android -

as answered below. best approach add listener viewpager know when each fragment selected.

this way activity can trigger fragment refresh listener through interface example.

check post both answers , comment need. think of clearer solution, codes want call when flip them put them in public method in fragment class, in onpageselected in viewpager particular fragment being accessed either position (or anyway want viewpager.getitem(pos)) return fragment , can check if fragment instanceof preferred fragment class , cast it , call code

//suppose have fragment via myviewp.getitem(2) if(fragmentobject instanceof myfragmentclass){     //do work  }  //put else , check others