BUG: transition onComplete doesn't pass event.target

Solar2D General Questions/Discussion
#1

I found a bug in transition.to, it doesn’t pass the object to onComplete function.

this example is taken directly from the corona docs…

local square = display.newRect( 0, 0, 100, 100 ) local w,h = display.stageWidth, display.stageHeight local listener1 = function( event ) local target = event.target print( "Transition 1 completed on object: " .. tostring( target ) ) end -- (1) move square to bottom right corner; subtract half side-length transition.to( square, { time=1500, alpha=0, x=(w-50), y=(h-50), onComplete=listener1 } )

The response is…

Transition 1 completed on object: nil
#2

Wouldn’t an Event function need some kind of event phase to trigger it? I’d suggest trying it this way:

local listener1 = function( obj ) print( "Transition 1 completed on object: " .. tostring( obj ) ) end

I use these quite often to nil out objects and it seems to work pretty well. 

#3

Hi @coolromin,

Apologies for this… the “onComplete” of transitions now behaves as in the 1.0 version of the library (for consistency), and I forgot to update the code sample in the transition.to() documentation. I’ll make this correction shortly. As @Panc suggests, use just the “event” (or whatever argument you want to name it), not “event.target”.

Brent

#4

Wouldn’t an Event function need some kind of event phase to trigger it? I’d suggest trying it this way:

local listener1 = function( obj ) print( "Transition 1 completed on object: " .. tostring( obj ) ) end

I use these quite often to nil out objects and it seems to work pretty well. 

#5

Hi @coolromin,

Apologies for this… the “onComplete” of transitions now behaves as in the 1.0 version of the library (for consistency), and I forgot to update the code sample in the transition.to() documentation. I’ll make this correction shortly. As @Panc suggests, use just the “event” (or whatever argument you want to name it), not “event.target”.

Brent