Question

I’d like to ask if it’s possible and how to simplify following code:

views.setImageViewBitmap(R.id.contact01Button, data.get(0).getFriendImage());
views.setImageViewBitmap(R.id.contact02Button, data.get(1).getFriendImage());
views.setImageViewBitmap(R.id.contact03Button, data.get(2).getFriendImage());
views.setImageViewBitmap(R.id.contact04Button, data.get(3).getFriendImage());

How to generate view id e.g. R.id.contactXXButton in a cycle or with something similar? I need to set many buttons.

Answer 1

This should do the trick:

for (int i = 0; i < ids.length; i++) {
  String identifier = "contact" + String.format("%02s", i+1) + "Button";

  // next line taken from louiscoquio's answers. Credits go to him!
  int id = getResources().getIdentifier(identifier, "drawable", theContext.getPackageName());

  views.setImageViewBitmap(id, data.get(i).getFriendImage());
}