I am developing a globe animation ,in which the speed of the rotation changes with the length of the user's drag event.The globe when touched and moved attains positive acceleration,reaches maximum value,rotates there for sometime and starts retarding and comes back to its original position.Can anybody tell me how to do this in corona.A sample code will be really helpful
Well first off, Corona is a 2D SDK so I'm not sure how effective it would be to do an animated globe like this. Still, it's pretty easy to get the length of a user's drag, and then you can use that length to modify the speed of your animation.
First off, make sure to set your event listeners for "touch" and not "tap". "Touch" events respond to both the beginning and end of a user's gesture, while "tap" events simply responds to the user tapping a spot.
In the documentation for "touch" event listeners, you'll see you can check the "phase" property of the event in order to check for "began" and "ended":
Simply calculate the distance from start to end when event.phase=="ended"