Drupal 8 custom block (module) create twig template file

Question

I have a custom Module that creates a custom Block which has field elements.

This all works fine but I need to theme this block. I have checked the other posts on here

Answer 1

UPDATE: So I just got it to work but I still need help. I moved the template block--my-module.html.twig to my theme directory and it worked.

How do I get it to work in my module directory?

You can create a directory called templates/ in your modules root. Place your template here.

Now let Drupal know you store the template in your module. in your_module.module add this function:

function YOUR_MODULE_theme($existing, $type, $theme, $path) {
  return array(
    'block__my_module' => array(
      'render element' => 'elements',
      'template' => 'block--my-module',
      'base hook' => 'block'
    )
  );
}

This is not tested. It´s the way it worked for my custom block.

Don´t forget to clear the cache.