Block render array image_formatter

Question

How can I pass a renderable array from within a block?

$block['content'] = array(
  '#theme' => 'image_formatter',
  '#variables' => array('path' => 'hello.png'),
);

How do I pass the variables that image_formatter needs when I use a renderable array from within a block?

Answer 1

$image = array(
  '#theme' => 'image_formatter',
  '#image_style' => 'thumbnail',
  '#item' => array(
    'uri' => $user->picture->uri,
    'alt' => '',
    'title' => '',
  ),
);
$block['image'] = $image;

Answer 2

It is a bit confusing until you've done it a couple of times (it had me scratching my head for ages); you need to prefix the names of the variables with a #, as properties of the array:

$block['content'] = array(
  '#theme' => 'image_formatter',
  '#path' => 'hello.png',
  '#alt' => 'Hello!'
);

That would be the equivalent of:

theme('image_formatter', array('path' => 'hello.png', 'alt' => 'Hello!'));