smooth animation of a ViewPager on start of the activity. (in case you can't or won't use ViewPagerIndicator to announce the presence a ViewPager)

MyFragementWithViewPager.java

@Override
public void onStart() {
    super.onStart();

        ObjectAnimator  objectAnimator = ObjectAnimator.ofFloat(new PagerHintMovement(-10), "progress", -1f, 1f);
        objectAnimator.setInterpolator(new AccelerateInterpolator());
        objectAnimator.setDuration(500);
        objectAnimator.setRepeatCount(3);
        objectAnimator.setRepeatMode(ValueAnimator.REVERSE);
        objectAnimator.addListener(new Animator.AnimatorListener() {
            @Override
            public void onAnimationStart(Animator animation) {
                Log.d(TAG, "Animation: Starting fake drag on view pager.");
                mHeroDetailPager.beginFakeDrag();
            }

            @Override
            public void onAnimationEnd(Animator animation) {
                Log.d(TAG, "Animation: Ending fake drag on view pager.");
                mHeroDetailPager.endFakeDrag();
                mHeroDetailPager.setCurrentItem(0);
            }

            @Override
            public void onAnimationCancel(Animator animation) {
                mHeroDetailPager.setCurrentItem(0);
            }

            @Override
            public void onAnimationRepeat(Animator animation) {

                if(animation.getInterpolator() instanceof AccelerateInterpolator){
                    animation.setInterpolator(new DecelerateInterpolator());
                }else{
                    animation.setInterpolator(new AccelerateInterpolator());
                }
            }
        });
        objectAnimator.setStartDelay(2000);
        objectAnimator.start();

}

class PagerHintMovement{

    float goal;
    float progress;

    PagerHintMovement(float goal) {
        this.goal = goal;
    }

    public float getProgress() {
        return progress;
    }

    public void setProgress(float progress) {
        this.progress = progress;

        if(mHeroDetailPager.isFakeDragging()){
            Log.d(TAG, "Animation: Updating fake drag with value="+ goal * progress+"px");
            mHeroDetailPager.fakeDragBy( goal * progress);
        }

    }
}