In every fragment you should add such methods as:
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.you_menu_file, menu);
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menuitem1:
//your implementation of menu item click
break;
case R.id.menuitem2:
//your implementation of menu item click
break;
case R.id.menuitem3:
//your implementation of menu item click
break;
}
return false;
}