ios - How to get listed in the share menu?

Question

I'm creating a messaging app and I would like to enable other apps to share text to my app via the share menu option.

How do I get my app listed in there?

This is the menu I would like to get listed in:

Answer 1

In iOS 8, Apple has now enabled a way for you to add your application to a user's Share Sheet as one of many features of Extensibility, which aims to make your app available to the user even when closed.

You can read a lot more about share extensions here, or go straight to Apple's pre-release documentation to dive into the code.

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Update: Above link of Apple documentation is not working, check here App Extension Programming Guide: Share