WP my pagination function don't show in my custom Template - php

Question

My pagination function shows in my index page , but when call function in a custom Template page (page-news.php) it don't show !!
functions.php
function numbering_pagination() {
global $wp_query;
$all_pages = $wp_query->max_num_pages;
$current_page = max(1,get_query_var('paged'));
if ($all_pages >1) {
return paginate_links(array(
'base' => get_pagenum_link() . '%_%',
'format' => 'page/%#%',
'current' => $current_page,
'mid_size' => 3,
'end_size' => 3,
'prev_text' => 'السابق',
'next_text' =>'التالي'
));
}
}
page-news.php
<?php /* Template Name: news */
get_header(); ?>
<div id="fh5co-blog-section" class="fh5co-section-gray">
<div class="container">
<div>
<div class="text-center heading-section animate-box">
<h3>news</h3>
</div>
</div>
</div>
<div class="container">
<div class="row row-bottom-padded-md">
<?php
$args = array(
'post_type' => 'post',
'category_name'=> 'news'
);
$posts = new WP_Query( $args );
while( $posts->have_posts() ):
$posts->the_post();
?>
<div class="col-lg-4 col-md-4 col-sm-6">
<div class="fh5co-blog animate-box">
<img src="<?php the_post_thumbnail_url('full')?>" alt="" />
<div class="blog-text">
<div class="prod-title">
<h3><?php the_title()?></h3>
<span class="posted_by"><?php the_time('F jS, Y'); ?></span>
<p><?php the_content('<span class="read-more"> ... more</span>'); ?></p>
</div>
</div>
</div>
</div>
<?php
endwhile;
wp_reset_query();
?>
</div>
</div>
<!-- ------ pagination ------ -->
<div class="pagination-numbers text-center">
<?php echo numbering_pagination() ?>
</div>
<!-- ------ END News ------ -->
How can I solve this?

Answer 1

From the WordPress codex:
<?php
//Protect against arbitrary paged values
$paged = ( get_query_var( 'paged' ) ) ? absint( get_query_var( 'paged' ) ) : 1;
$args = array(
'posts_per_page' => 5,
'category_name' => 'gallery',
'paged' => $paged,
);
$the_query = new WP_Query( $args );
?>
<!-- the loop etc.. -->
AND:
<?php
$big = 999999999; // need an unlikely integer
echo paginate_links( array(
'base' => str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ),
'format' => '?paged=%#%',
'current' => max( 1, get_query_var('paged') ),
'total' => $the_query->max_num_pages
) );
?>
Mind the:
'total' => $the_query->max_num_pages
Also see: https://codex.wordpress.org/Function_Reference/paginate_links