Hyperrail/src/main/res/layout/activity_preferences.xml
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<include layout="@layout/toolbar_default" />
<ListView
android:id="@android:id/list"
android:layout_marginTop="?attr/actionBarSize"
android:layout_width="match_parent"
android:layout_height="1dp"
android:visibility="gone"/>
<FrameLayout
android:id="@+id/preferences_content"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>