QuadBatch null pointer exception

[greymag]

There is a problem In branch origin/v1.8.x after replace Starling event with conventional in QuadBatch. Now, if someone dispose QuadBatch in it's own context created listener, then QuadBatch will thrown 1009 error in createBuffers() (called from onContextCreated). Thats because removeEventListener() are not remove event listener while handle this event

[PrimaryFeather]

Thanks for the report! Could you maybe create a sample that I can use to reproduce the problem? I'm not sure I understand it 100% by the description alone.

[greymag]

Yes, of course. The code below will throw null pointer exception after 500 ms delay

package
{
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.utils.setTimeout;
    import starling.core.Starling;
    import starling.display.QuadBatch;
    import starling.events.Event;

    public class TestStarling extends flash.display.Sprite
    {
        private var _starling:Starling;
        private var _qb:QuadBatch;

        public function TestStarling()
        {
            Starling.handleLostContext = true;

            _starling = new Starling(starling.display.Sprite, this.stage);

            _starling.addEventListener(starling.events.Event.ROOT_CREATED, this.rootCreated);
            _starling.start();
        }

        private function rootCreated(e:*):void
        {
            _starling.stage3D.addEventListener(flash.events.Event.CONTEXT3D_CREATE, this.onContextCreated);
            _qb = new QuadBatch();

            setTimeout(function ():void {
                // initiate context lost
                _starling.context.dispose();
            }, 500)
        }

        private function onContextCreated(e:*):void
        {
            // dispose QuadBatch on context lost
            _qb.dispose();
        }
    }
}

[PrimaryFeather]

I just added a check that should avoid these problems. Sorry for the delay!