what do you think about this way to recognize screenshots?

[haemi]

http://blog.chpwn.com/post/38491252231

On a technical level, the two basic pieces are UILongPressGestureRecognizer (or -touchesCancelled:withEvent:, if you want) and UIApplicationDelegate.

[clayallsopp]

Yeah, it works if "anything that you want to protect will require you to have the user to touch the screen to see."

There might be a way to support this (like [[ShotBlocker sharedManager] addDetectionGestureToView: view]), but it's not a one-size-fits-all method =\ would welcome a PR for it!

[drakos]

Is there a way to detect screenshot before it's saved in camera roll? Like I want to alter the views before screenshot is taken.

Cheers!

[clayallsopp]

Nope, all screen shot detection techniques only work after-the-fact.

[drakos]

Thanks! Great work!