WpAdmin_PluginRequired_Notification_Bar More info : http://www.fatihtoprak.com/temanizi-kullananlar-icin-eklenti-yuklemeyi-hatirlatma-mesaji-yayinlamak-ipucu-123.html

Admin_Plugin_Required_Notification.php

<?php
add_action('admin_notices', 'showAdminMessages');
function showAdminMessages()
{
        $plugin_messages = array();
	include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
	// Download the Yoast WordPress SEO plugin
	if(!is_plugin_active( 'wordpress-seo/wp-seo.php' ))
	{
		$plugin_messages[] = 'This theme requires you to install the Yoast WordPress SEO plugin, <a href="http://wordpress.org/extend/plugins/wordpress-seo/">download it from here</a>.';
	}
	// Download the Disqus comment system
	if(!is_plugin_active( 'disqus-comment-system/disqus.php' ))
	{
		$plugin_messages[] = 'This theme requires you to install the Disqus comment system plugin, <a href="http://wordpress.org/extend/plugins/disqus-comment-system/">download it from here</a>.';
	}
	// Download the WordPress popular posts plugin
	if(!is_plugin_active( 'wordpress-popular-posts/wordpress-popular-posts.php' ))
	{
		$plugin_messages[] = 'This theme requires you to install the WordPress Popular Post plugin, <a href="http://wordpress.org/extend/plugins/wordpress-popular-posts/">download it from here</a>.';
	}
	if(count($plugin_messages) > 0)
	{
		echo '
<div id="message" class="error">';
			foreach($plugin_messages as $message)
			{
				echo '
<strong>'.$message.'</strong>
';
			}
		echo '</div>
';
	}
}

?>