actionscript 3 - Starling Touch event throws an unexpected error -


if else having same issue, facing in few of projects never bother finding cause.

every thing works fine while adding listener touchevents:

btn.addeventlistener(touchevent.touch,function(e:touchevent){             var t:touch = e.gettouch(stage);              if(t.phase == touchphase.ended)             {                      resetball();              }         });

but sometime if somehow mouse hover through object project stops, , throws following error.

typeerror: error #1009: cannot access property or method of null object reference.     @ function/game.as$0:anonymous()[...src\game.as:45]     @ starling.events::eventdispatcher/invokeevent()[/users/redge/dropbox/development/starling/starling/src/starling/events/eventdispatcher.as:141]     @ starling.events::touchevent/dispatch()[/users/redge/dropbox/development/starling/starling/src/starling/events/touchevent.as:174]     @ starling.events::touchprocessor/processtouches()[/users/redge/dropbox/development/starling/starling/src/starling/events/touchprocessor.as:186]     @ starling.events::touchprocessor/advancetime()[/users/redge/dropbox/development/starling/starling/src/starling/events/touchprocessor.as:135]     @ starling.core::starling/advancetime()[/users/redge/dropbox/development/starling/starling/src/starling/core/starling.as:379]     @ starling.core::starling/nextframe()[/users/redge/dropbox/development/starling/starling/src/starling/core/starling.as:369]     @ starling.core::starling/onenterframe()[/users/redge/dropbox/development/starling/starling/src/starling/core/starling.as:568]

the standard check if touch object returned gettouch() null before checking phase property.

var touch:touch = e.gettouch( stage ); if ( touch ) {     if( touch.phase == touchphase.ended ) {        resetball();     } }

from starling wiki:

private function ontouch(event:touchevent):void {     var touch:touch = event.gettouch(this, touchphase.began);     if (touch)     {         var localpos:point = touch.getlocation(this);         trace("touched object @ position: " + localpos);     } }

http://wiki.starling-framework.org/manual/touch_events


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