[SailfishDevel] app crashed when using Canvas in Dialog page

Andrey Kozhevnikov coderusinbox at gmail.com
Wed Aug 13 18:50:20 UTC 2014


try to get backtrace and check what exactly is the reason of crash.

14.08.2014 00:49, Samuli Silvius пишет:
> Hi,
>
> I have Canvas in Silica Dialog page but app crashes when leaving 
> dialog page both with accept or cancel swipe. It does not crash always 
> just quite often.
>
> the code:
>          Canvas  {
>              id:  imageCanvas
>              visible:  isImageUrl
>              width:  imgLoader.sourceSize.width
>              height:  imgLoader.sourceSize.height
>              renderStrategy:  Canvas.Immediate
>              onPaint:  {
>                  var  ctx  =  getContext("2d")
>                  ctx.drawImage(imgLoader,  0,  0)
>              }
>          }
>          Image  {
>              id:  imgLoader
>              visible:  false
>              source:  isImageUrl  ?  url  :  ""
>          }
> The idea is to save image to the gallery in onAccepted if user has 
> selected that option as Canvas has save method which can be used to 
> save image to a file.
>
> And it works fine, but causing app to crash sometimes when leaving 
> Dialog page with cancel swipe. SDK outputs a long crash dump.
>
> -Samuli
>
>
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