What is elevation doing in Android L?

Question

Today I developed my first Android L Apps, and read through the d.android.com/preview tips. They said that android:elevation would show me shadows. But look at this:

<TextView
    android:id="@+id/tvTest5"
    android:layout_width="50dp"
    android:layout_height="50dp"
    android:layout_below="@id/btnTest1"
    android:layout_toRightOf="@id/tvTest4"
    android:layout_marginLeft="10dp"
    android:background="#000000"
    android:elevation="50dp"/>

I don't see any shadow in my Emulator. Am I doing something wrong or is the Emulator buggy? I'm using Android Studio

Answer 1

I kinda solved it. The problem was the emulator. We now have ordered a Nexus 5 and flashed Android L. Now it works fine