Buddyblog subnav to show following user posts

bp-custom.php

/**
 * Add new tab in buddyblog nav items
 */
function buddydev_add_buddyblog_subnav_item() {

	if ( ! function_exists( 'buddyblog' ) || ! function_exists( 'bp_follow_get_following' ) ) {
		return;
	}

	bp_core_new_subnav_item( array(
		'name' => __( 'Following User', 'buddydev' ),
		'slug' => 'following_user_posts',
		'parent_slug' => BP_BUDDYBLOG_SLUG,
		'parent_url' => buddyblog_get_home_url(),
		'screen_function' => 'buddydev_following_users_posts',
		'show_in_admin_bar' => true,
	) );
}
add_action( 'bp_buddyblog_setup_nav', 'buddydev_add_buddyblog_subnav_item' );

/**
 * Callback screen function
 */
function buddydev_following_users_posts() {
	add_action( 'bp_template_content', 'buddyblog_render_following_user_posts' );
	bp_core_load_template( 'members/single/plugin' );
}

/**
 * Render following user posts
 */
function buddyblog_render_following_user_posts(){
	add_filter( 'paginate_links', 'buddydev_modify_buddyblog_pagination_link' );
	add_action( 'pre_get_posts', 'buddydev_modify_posts_query' );
	buddyblog_load_template( 'posts.php' );
}

/**
 * Filter main query for subnav context
 *
 * @param WP_Query $query Query object.
 */
function buddydev_modify_posts_query( $query ) {
	if ( bp_is_current_component( 'buddyblog' ) && bp_is_current_action( 'following_user_posts' ) ) {

		$follwing_user_ids = bp_follow_get_following( array( 'user_id' => bp_displayed_user_id() ) );
		$paged = bp_action_variable( 1 );
		$paged = $paged ? $paged : 1;

		$query->set( 'post_type', buddyblog_get_posttype() );
		$query->set( 'author', '' );
		$query->set( 'author__in', $follwing_user_ids );
		$query->set( 'post_status', 'publish' );
		$query->set( 'paged', intval( $paged ) );
	}
}

/**
 * Modify buddyblog pagination link
 *
 * @param string $link Link string.
 *
 * @return string
 */
function buddydev_modify_buddyblog_pagination_link( $link ) {
	if ( strpos( $link, BUDDYBLOG_ARCHIVE_SLUG ) !== FALSE ) {
		$link = str_replace( BUDDYBLOG_ARCHIVE_SLUG, 'following_user_posts', $link );
	}

	return $link;
}