activity_initialize_main.xml

<?xml version="1.0" encoding="utf-8"?>

<layout xmlns:android="http://schemas.android.com/apk/res/android">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#ffffff">

        <android.support.v4.view.ViewPager
            android:id="@+id/vp_initial"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:visibility="gone"
            />

        <ImageView
            android:id="@+id/start_pager_image"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_centerHorizontal="true"
            android:background="@mipmap/bg_splash"
            android:visibility="visible" />

    </RelativeLayout>
</layout>