Display all Post types and Custom Post types in Home Page

Creation of multiple post types can't  be displayed all in your themes home page. All you have to do is to add the following code into your theme "functions.php" file or main plugin file to view it on your home page

<?php 

add_filter( 'pre_get_posts', 'kv_wp_get_posts' );

function kv_wp_get_posts( $query ) {

if ( is_home() )

$query->set( 'post_type', array( 'post', 'page', 'custom post types', 'attachment' ) );

else if(is_front_page())

$query->set( 'post_type', array( 'post', 'page', 'custom post types', 'attachment' ) );

return $query;

}

?>

Here post, pages, custom_post types and attachments are athe post types, you can add your own custom post types which you registered already,