[bobthedino]

The button he's calling the "share" button is in fact called the "action" button in iOS. It's supposed to bring up a context-sensitive list of actions that you can perform at a particular point in an app. The article says "same button, completely different uses in the same app" - well, that's how it's meant to be used.

http://bit.ly/OXvSyw

[kennywinker]

That said, performing an action on the same object (an article) from the detail view or the list view should probably give you the same list of options... unless there is a very good reason not to... which there doesn't appear to be.

[ja27]

I once had the same confusion, even as an iOS developer. That makes me try to offer individual buttons for actions that don't fit into a "share" metaphor I at least until I run out of space.