TouchEvent multitouch three finger bug

[subdan]

Hello, Daniel. I've found a bug when using TouchEvent.

When I tap three fingers at the same time on three different display objects TouchPhase.ENDED doesn't fired. For two objects there isn't an issue.

var quad1:Quad = new Quad(50,50,0xFFFFFF);
addChild(quad1);

var quad2:Quad = new Quad(50,50,0xFFFFFF);
quad2.y = 60;
addChild(quad2);

var quad3:Quad = new Quad(50,50,0xFFFFFF);
quad3.y = 140;
addChild(quad3);

addEventListener(TouchEvent.TOUCH, touchHandler);

function touchHandler(event:TouchEvent):void
{
    var touch1:Touch = event.getTouch(quad1);
    var touch2:Touch = event.getTouch(quad2);
    var touch3:Touch = event.getTouch(quad3);

    if (touch1)
        if (touch1.phase == TouchPhase.BEGAN)
            quad1.color = 0xCCCCCC;
        else if (touch1.phase == TouchPhase.ENDED)
            quad1.color = 0xFFFFFF;

    if (touch2)
        if (touch2.phase == TouchPhase.BEGAN)
            quad2.color = 0xCCCCCC;
        else if (touch2.phase == TouchPhase.ENDED)
            quad2.color = 0xFFFFFF;

    if (touch3)
        if (touch3.phase == TouchPhase.BEGAN)
            quad3.color = 0xCCCCCC;
        else if (touch3.phase == TouchPhase.ENDED)
            quad3.color = 0xFFFFFF;
}

There are three Quad's on the screen. Tap on these quads with three fingers simultaneously. These three quads should be white when you release your fingers but it is not.

[PrimaryFeather]

Hi Daniil,

hm, this works fine when I try it! On which type of device did you test it? And did you enable Starling.multitouchEnabled before starting Starling?

(I tested on an iPhone.)

[subdan]

I test on Android tablet. Yes, I did.

[PrimaryFeather]

Just tried on an Android device, too - without issues. And to be honest, that touch handling code hasn't been changed for a long time, so it should be rather solid.

Please check the settings of your device and if other multitouch apps work correctly. This stackoverflow discussion might provide a starting point.

[subdan]

Ok, I will check again and get back to you within a day.

[subdan]

Thanks for the stackoverflow link. I disabled Acer's three-finger gesture to make screenshot and the issue is gone.

[PrimaryFeather]

I'm happy to hear that! :smile: