activity_splashscreen.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"
    tools:context="com.xiditech.easysplashscreeen.Welcome">

    <ImageView        

android:layout_width="match_parent"

android:layout_height="match_parent"

android:id="@+id/imageView"

android:layout_centerHorizontal="true"

android:src="@drawable/android_boot_image"/>
</RelativeLayout>