I was wondering how the Apple Watch Remote app is able to detect swiping gestures and taps on an area that does not look like a button. Is this restricted to Apple only at this time, or is there a way for developers to take advantage of this?
At least for now (Jun 1, 2015) before they preview new SDK on the coming up WWDC, it is not available for 3rd party developers. All interactions you currently have on watch are tapping a button or table row, force tapping to show menu, swipe to page horizontally for pagination UI and scroll the entire the screen vertically.