问题
Some apps have their 'Share Extensions' enabled by default when installing the app. Flickr is an example of this.
However, other apps do not - OneNote, Wunderlist, etc are not enabled by default.
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.
Thank you!
回答1:
These apps have agreements with Apple. If you look at your settings app, you can see these apps that have agreements. Vimeo is another app with a similar agreement. As far as I know, there is no way to set your app to have the share extension enabled by default.
Note that I do not have Vimeo installed, but it's still in the Settings app.
来源：https://stackoverflow.com/questions/34821475/how-does-ios-determine-which-share-extensions-are-enabled-by-default