import android.widget.*;

static <A extends TextView> A aSetGravity(final int gravity, final A a) {
  if (a != null) androidUI { a.setGravity(gravity) }
  ret a;
}

static <A extends LinearLayout> A aSetGravity(final int gravity, final A a) {
  if (a != null) androidUI { a.setGravity(gravity) }
  ret a;
}