NetGuard/app/src/main/res/layout/main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingEnd="@dimen/activity_horizontal_margin"
    android:paddingStart="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".ActivityMain">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <TextView
            android:id="@+id/tvDisabled"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="8dp"
            android:padding="8dp"
            android:text="@string/msg_disabled"
            android:textAppearance="@style/TextMedium"
            android:textColor="?attr/colorOff"
            android:visibility="gone" />

        <android.support.v4.widget.SwipeRefreshLayout
            android:id="@+id/swipeRefresh"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <android.support.v7.widget.RecyclerView
                android:id="@+id/rvApplication"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:scrollbarStyle="insideOverlay"
                android:scrollbars="vertical" />
        </android.support.v4.widget.SwipeRefreshLayout>
    </LinearLayout>

    <View
        android:id="@+id/vwPopupAnchor"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_centerInParent="true" />
</RelativeLayout>