Android’s latest release, Lollipop (Android 5.0 API Level 21) includes the new RecyclerView and CardView widgets. They’re also made available for use on devices running API Level 7 and above through the Support Libraries.
The RecyclerView provides a more advanced and flexible way of displaying lists than the old ListView.
The CardView widget enables you to display views inside a card. You can design the card so that its look is consistent across your app.