iOS detect drag outside left edge of screen

Question

In iPad when you put your finger outside top or bottom edge of screen and then drag it on screen a menu is revealed. How can I implement that?

Answer 1

• There is specifically a Gesture Recogniser class for this, introduced in iOS 7. It's the UIScreenEdgePanGestureRecognizer. The documentation for it is here. Check it out.

• To test this in the simulator, just start the drag from near the edge (~15 points).

• Also, you will have to create a gestureRecognizer for each edge. You can't OR edges together, so UIRectEdgeAll won't work.

There is a simple example here. Hope this helps!