Android New Components CardView

After Android L, a new CardView component has been added, and many of Google's official apps use cards to display information, which should be the cardview behind it.

Use CardView to introduce a separate support package:com.android.support:cardview-v7:22.2.0

Individuals in the introduction of the time, some doubts, it is supposed to say that the card effect is very good to achieve, the simplest is to give the view set a white background, set a certain margin can be, then this cardview have what special, need to separate as a component?

Do an experiment and look at the effect of using normal view:

Using CardView:

The difference is obvious, CardView added some shadow and fillet, some stereoscopic effect, this is the biggest difference currently found, visual inspection Google is to standardize the appearance of the card show it?

Android New Components CardView