When you add a map to your application, you can automatically pan, zoom, and rotate the map using pre-defined gestures that are enabled by default:

NavigationUser Action
Zoom in                                                                        Two-pointer pinch open
Single-pointer double-tap
Zoom outTwo-pointer pinch close
Two-pointer single-tap
Continuous zoom in / outSingle-pointer double-tap, ending in a vertical up/down drag      
Move/PanSingle-pointer drag or flick
RotateTwo-pointer rotate