Android line loading animation

Question

How can I make an animation in Android like this one or similar?

I don't know where to start, how to make the lines and how to make them move.

See the progress bar displayed on this site: http://tinyurl.com/oqy8zef

Answer 1

This is an indeterminate progress bar

<ProgressBar
    style="?android:attr/progressBarStyleHorizontal"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:indeterminate="true" />

But you should not include "Loading..." text according to guidelines