Exercise: Gesture detection, swipe etc.

Use the example SwipeGesture as a starting point. This app uses horizontal Swipe (and Scroll) to go to other activities and back.

Extend the example to include vertical Swipe (and Scroll) gestures to go to other activities and back.

Inspiration: aCalendar from Tapirapps. Inspiration only - your are not supposed to make a calendar app.