WordPress Admin Bar Not Showing On Front End For Custom Theme

Some custom wordpress theme doesn’t show the admin bar into the theme page same with the wp_head() and the wp_footer() wrote on the templates files. To resolve that problem just add the following code into your function.php or into your own plugin:

function admin_bar(){

  if(is_user_logged_in()){
    add_filter( 'show_admin_bar', '__return_true' , 1000 );
  }
}
add_action('init', 'admin_bar' );

Source: https://www.ahmadmushtaq.com/wordpress-admin-bar-not-showing-on-front-end-for-custom-theme/