Wordpress next/previous post id

Question

I'm trying to add the post id's to the next and previous posts. Currently using the following code gives me the undesired effect of post id of the page displayed.

<div id="post-<?php the_ID(); ?>" class="project-tile nextproject">
    <a href="#"><?php next_post('%','', TRUE, '1'); ?></a></h2>
</div><!-- /project-tile -->

<div class="project-tile previousproject">
    <a href="#"><?php previous_post('%','', TRUE, '1'); ?></a>
</div><!-- /project-tile -->

Answer 1

// Works inside and outside of the Loop
function function_name() {
global $post;
$thePostID = $post->ID;
}
//or
echo $post->ID

Outside of the loop, use the post object WP post ID outside of loop or you can use just the one call if you don't want to set up a function.