Animation View View.setVisibily(View.VISIBLE) in Android

I have a vertical linearLayout v1, v2. By default v1 has visibily = GONE. I would like to show v1 with an expand animation and push down v2 at the same time (GONE -> VISIBLE).

In this link How do I animate View.setVisibility(GONE) to know the effect a view slowly disappeared (VISIBLE -> GONE开发者_高级运维), but not (GONE -> VISIBLE).

Please help me! Thanks.