How do I cancel an event?

Other
#1

I’m looking for basic button functionality. I’m listening for touch events on buttons, but I’m also listening for touch events on Runtime. If a button receives an event, how do I prevent that event from bubbling up to Runtime by cancelling the event within the button’s touch listener? I want to simulate a “roll off” event. I want it so my Runtime touch listener responds to the “moved” phase and buttons respond to the “moved” phase but not both at the same time.

#2

Hi Kyle,

Touches basically propagate first through the display object heirarchy, then if they’re not “handled” by anything there, they go to the Runtime. You can tell a touch to stop (not propagate further) by returning true in the button/object’s touch handler.

See here for a better description:

https://docs.coronalabs.com/guide/events/touchMultitouch/index.html#taptouch-propagation

Brent

#3

Thanks! That works splendidly.

#4

Hi Kyle,

Touches basically propagate first through the display object heirarchy, then if they’re not “handled” by anything there, they go to the Runtime. You can tell a touch to stop (not propagate further) by returning true in the button/object’s touch handler.

See here for a better description:

https://docs.coronalabs.com/guide/events/touchMultitouch/index.html#taptouch-propagation

Brent

#5

Thanks! That works splendidly.