Custom access control in views I have Views page with list of enities. The URL is /admin/group/12/members

There is a route in mymodule.routing.yml:

  mymodule_members_list:
  path: '/admin/group/{id}/members'
  requirements:
    _custom_access: '\Drupal\mymodule\Controller\GroupController::access'


The Group entity has field contains group administrator email (field_admin_email)

What I need is to allow administrator to only access a view with group/{id} associated with his email.
(I have only problem with views access - it seems like views override my custom access method)
Solved!

Adding custom access to the Views is very easy: 
Just create own views access plugin by extending Drupal\views\Plugin\views\access\AccessPluginBase class.

Then implement custom access logic in access method and new rule should appear in PAGE SETTINGS > Access popup window.