[SailfishDevel] How to detect when an app are restored from minimized

Osmo Salomaa otsaloma at iki.fi
Sat Jan 24 01:28:13 UTC 2015

24.01.2015, 01:04, Kim Foder kirjoitti:
> I believe this is because of the change where the context is freed when
> the app is minimized, so I added a call to var getContext("2d") to my
> onPaint event, and the app can paint on the canvas again.

I noticed the same, it changed with Uitukka/Qt5.2. Adding an 
onContextChanged handler worked for me.

Canvas {
     id: canvas
     onContextChanged: {
         if (!canvas.context) return;
         // Initialize context properties here...

Osmo Salomaa <otsaloma at iki.fi>

More information about the Devel mailing list