Magento 2: add admin page content title in layout xml?

Question

I noticed that you can set the page title in the layout xml per how to modify page title.

but it's not working in the admin - if I want to change the admin page title, in the Controller, this works:

$resultPage->getConfig()->getTitle()->prepend(__('Customers Now Online'));

Is there a way to set the result content page title in the layout xml?

Answer 1

Add this in Block file which is associated to phtml file.

 public function getHeader()
        {
            if ($this->getProduct()->getId()) {
                $header = $this->escapeHtml($this->getProduct()->getName());
            } else {
                $header = __('New Product');
            }
            return $header;
        }

Change this function as your requirement. Also header need to declare into xml file.