AnimatorSet set = (AnimatorSet) AnimatorInflater.loadAnimator(activity,
                    R.animator.animator_bkg);
            set.setTarget(childLinear);
            set.setInterpolator(new AccelerateInterpolator());
            set.start();

<objectAnimator
   android:propertyName="backgroundColor"
   android:duration="3000"
   android:valueFrom="@color/white"
   android:valueTo="@color/redTrans"
   android:repeatCount="-1"
   android:repeatMode="reverse"/>