Reset timer when user active

[nguyenDalex]

This is part of my retail store project, when a user taps the screen or drags that counts as active and the timer should be reset to a new timer instead of the default one so that the user can read the slide before it auto rotates.

This would be a great addition...

[chrishumboldt]

New start and stop methods have been added that will do this.

Version: 3.1.0