Background
Google has recently published an update to its support library, which now has a new "SwipeRefreshLayout" view.
The view allows to wrap another view, while supporting swiping down in order to perform a refresh operation.
screenshot:

The problem
Google hasn't provided a sample (at least not one that I can find, yet), so I've tried using it myself.
At first I got a crash (NPE) whenever I swiped, but then I've found out that's because I didn't provide a "OnRefreshListener" for it.
But I still don't get how to use it, let alone customize it
Here's the XML of the layout file:
<android.support.v4.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.swiperefreshlayouttest.MainActivity"
    tools:ignore="MergeRootFrame" >
    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" >
            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="TTT"
                android:textSize="40sp" />
            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="TTT"
                android:textSize="40sp" />
            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="TTT"
                android:textSize="40sp" />
            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="TTT"
                android:textSize="40sp" />
            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="TTT"
                android:textSize="40sp" />
        </LinearLayout>
    </ScrollView>
</android.support.v4.widget.SwipeRefreshLayout>
Code, though it doesn't do anything special at all:
public class MainActivity extends ActionBarActivity
  {
  @Override
  protected void onCreate(final Bundle savedInstanceState)
    {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    final SwipeRefreshLayout swipeRefreshLayout=(SwipeRefreshLayout)findViewById(R.id.container);
    swipeRefreshLayout.setOnRefreshListener(new OnRefreshListener()
      {
        @Override
        public void onRefresh()
          {
          // do nothing
          }
      });
    }
  }
The question
What is the correct way to use this view?
How do I customize it? Currently it's just a black line...
 
     
     
     
     
     
     
     
    