title: How does iOS determine which share extensions are enabled by default?
body: <p>Some apps have their 'Share Extensions' enabled by default when installing the app. Flickr is an example of this.</p>
  
  <p><a href="https://i.stack.imgur.com/XLDNR.png" rel="noreferrer"><img src="https://i.stack.imgur.com/XLDNR.png" alt="activities"></a></p>
  
  <p>However, other apps do not - OneNote, Wunderlist, etc are not enabled by default.</p>
  
  <p>Is there a setting in the plist file that controls this? I'm wondering if I can enable it by default, or have the user consent to enabling it by default, when my app starts up.</p>
  
  <p>Thank you!</p>