Are you using the latest version of the HTML Gesture API and example (found here)? If so, which version of Android are you testing it on (phone & tablet)?
Yes, we uploaded the example in an android app. As it was not working, we started investigating and saw that the library 'dpsHTMLGestureAPI.min.js' requires an Object adobeDPSHTMLNative. This object was not available which seems to be the reason why pressing the Toggle Navigation UI button did only log a message. It worked neither on Android Phone nor on Android Tablet.