will this work in a repeater?

The example code is on Descirption page of the plugin.

This is probably the code you are looking for with a repeater field. It’s tested and works on my site:

<?php // Loop through a Repeater field
	if( get_field('role_network_gallery_repeater') ): ?>
		<h2>Photos</h2>
			<?php while( has_sub_field('role_network_gallery_repeater') ): ?>
				<?php foreach ( get_sub_field ( 'role_network_gallery' ) as $nextgen_gallery_id ) :
					if ( $nextgen_gallery_id['ngg_form'] == 'album' ) {
						echo nggShowAlbum( $nextgen_gallery_id['ngg_id'] ); //NextGEN Gallery album
					} elseif ( $nextgen_gallery_id['ngg_form'] == 'gallery' ) {
						echo nggShowGallery( $nextgen_gallery_id['ngg_id'] ); //NextGEN Gallery gallery
					}
					endforeach; ?>
				<?php endwhile; ?>
			<?php endif; wp_reset_postdata() //Reset ?>

Cheers