WordPress: How to filter posts by category using $wp_query?
You have to use
category_name(string - use category slug) orcat(int - use category id), to get post by category inWP_Query::query().
Here is an example:
$category_name = 'apples'; //replace it with your category slug$temp = $wp_query;$wp_query = null;$wp_query = new WP_Query();$wp_query->query('showposts=1' . '&paged=' . $paged . '&category_name=' . $category_name);//...//...Hope this helps!
Delete your first php block and replace it with this
<?php$args = array ( 'showposts' => '1', 'category_name' => 'apples', 'paged' => $paged);$the_query = new WP_Query( $args );if ( have_posts() ) : while ( $the_query->have_posts() ) : $the_query->the_post();?>For more information https://codex.wordpress.org/Class_Reference/WP_Query#Category_Parameters