Touch Event listener Problem occurence

Solar2D General Questions/Discussion
#1

Sometime phase of the touch event is not going to “ended” phase when touch is released.What could be the possible reasons?

Code:

function cometoscreen(event) 

local pausegp=event.target

local phase=event.phase

if “began”==phase then 

– display.getCurrentStage():setFocus(pausegp)

– pausegp.isFocus=true  

initx=event.x 

inity=event.y  

elseif “moved”==phase then

pausegp.x =event.x

pausegp.y=0   

–planet_red.x=planet_red+pausegp.x 

a=event.x-initx 

print("a<40 if "…a)   

if(a<=0 ) then 

–pausegp:removeEventListener(“touch”,cometoscreen)

transition.to(pausegp,{time=200,x=display.contentWidth*0.5-640})    

  

end      

if (a>150) then 

transition.to(pausegp,{time=200,x=display.contentWidth*0.5-460,onComplete=function() 

pausegp:addEventListener(“touch”,gobacktosameplace) 

pausegp:removeEventListener(“touch”,cometoscreen)   

gunTurret:removeEventListener(“touch”,rotateObj)

satelite1:removeEventListener(“touch”, rotateSat)

circle:removeEventListener(“tap”,engage_shoot)  

  

end})   

display.getCurrentStage():setFocus( nil )

pausegp.isFocus=false  

end

elseif “ended”==phase or “cancelled”==phase then 

print(“yoyoyo”) 

if(a<=40 ) then 

transition.to(pausegp,{time=100,x=display.contentWidth*0.5-640,onComplete=function() 

display.getCurrentStage():setFocus( nil )

pausegp.isFocus=false  

end})    

end  

  

if (a>40) then 

transition.to(pausegp,{time=200,x=display.contentWidth*0.5-460,onComplete=function() 

pausegp:addEventListener(“touch”,gobacktosameplace) 

  

end})   

display.getCurrentStage():setFocus( nil )

pausegp.isFocus=false  

pausegp:removeEventListener(“touch”,cometoscreen)   

gunTurret:removeEventListener(“touch”,rotateObj)

satelite1:removeEventListener(“touch”, rotateSat)

circle:removeEventListener(“tap”,engage_shoot) 

end

end

return true

end

#2

Is this happening on simulator or on device?

It can happen sometimes in simulator if you go offscreen with your mouse, but that can’t happen on device so it’s ok.

Daniel

#3

Problem is occur in both simulator and device.

But when we swipe  that image,then it sometimes stop in middle and didn’t call event.phase==“ended”. And it happening on screen not off-screen.

#4

Are there 2 objects overlapping each other which both have touch listeners? It’s possible for a second object to “steal” the touch event from the first so that only some phases will be registered on the first object.  

Try adding:

return true

to the bottom of your touch function.

local myTouchFunction(event) if event.phase == "began" then --do something elseif event.phase == "moved" then --do something else elseif event.phase == "ended" then --stop doing stuff end return true end
#5

Already tried but still problem not solved.

#6

Is this happening on simulator or on device?

It can happen sometimes in simulator if you go offscreen with your mouse, but that can’t happen on device so it’s ok.

Daniel

#7

Problem is occur in both simulator and device.

But when we swipe  that image,then it sometimes stop in middle and didn’t call event.phase==“ended”. And it happening on screen not off-screen.

#8

Are there 2 objects overlapping each other which both have touch listeners? It’s possible for a second object to “steal” the touch event from the first so that only some phases will be registered on the first object.  

Try adding:

return true

to the bottom of your touch function.

local myTouchFunction(event) if event.phase == "began" then --do something elseif event.phase == "moved" then --do something else elseif event.phase == "ended" then --stop doing stuff end return true end
#9

Already tried but still problem not solved.