Well, you can access that ActionBar
"up" affordance by calling Resources.getIdentifier
and View.findViewById
. After that you could rotate it.
final int upId = getResources().getIdentifier("up", "id", "android");
final View up = findViewById(upId);
// Call this to just rotate the icon 180°
if (getResources().getConfiguration().getLayoutDirection() == View.LAYOUT_DIRECTION_RTL) {
up.setRotation(180f);
}