Why wont my splash screen work?

I'm pretty new to Java and xml i'm looking to have a splash screen run when i start up my app for about 5 seconds. I've taken code for the splash screen from stack overflow to set it up but i cant get it to run for some reason could anybody help me out! Cheers

MY splash class

   package com.darraghoflaherty.competer.game;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.view.Menu;

public class Splash extends Activity {

/** Duration of wait **/
private final int SPLASH_DISPLAY_LENGTH = 5000;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.splashscreen);

    /* New Handler to start the Menu-Activity
     * and close this Splash-Screen after some seconds.*/
    new Handler().postDelayed(new Runnable(){
        @Override
        public void run() {
            /* Create an Intent that will start the Menu-Activity. */
            Intent mainIntent = new Intent(Splash.this,Menu.class);
            Splash.this.startActivity(mainIntent);
            Splash.this.finish();
        }
    }, SPLASH_DISPLAY_LENGTH);
}

My xml code

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

<RelativeLayout xmlns:android="http://ift.tt/nIICcg"
 android:orientation="vertical"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:background="#0099FF">

<TextView
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:text="@string/ss1"
    android:id="@+id/ss1"
    android:textColor="#ffffff"
    android:textSize="260sp"/>




 </RelativeLayout>