@Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
A simple launcher activity containing a summary sample description, sample log and a custom
{@link android.support.v4.app.Fragment} which can display a view.
<p>
For devices with displays with a width of 720dp or greater, the sample log is always visible,
on other devices it's visibility is controlled by an item on the Action Bar.
RecyclerView/Application/src/main/java/com/example/android/recyclerview/MainActivity.java