How to set swallowtouches:false officially in Cocos Creator?

atr_toru · October 23, 2018, 4:42pm

Hi,
I could set swallowtouches:false when using cocos2d-x,
but it seems to be unavailable on recent CocosCreator.

I’d like to set touchEvent to touchNode with propagation, touched point.
But if using on or once , swallowtouches is always true.

github.com

cocos-creator/engine/blob/master/cocos2d/core/CCNode.js#L1386




// EVENT TARGET


_checknSetupSysEvent (type) {
    let newAdded = false;
    let forDispatch = false;
    if (_touchEvents.indexOf(type) !== -1) {
        if (!this._touchListener) {
            this._touchListener = cc.EventListener.create({
                event: cc.EventListener.TOUCH_ONE_BY_ONE,
                swallowTouches: true,
                owner: this,
                mask: _searchMaskInParent(this),
                onTouchBegan: _touchStartHandler,
                onTouchMoved: _touchMoveHandler,
                onTouchEnded: _touchEndHandler,
                onTouchCancelled: _touchCancelHandler
            });
            eventManager.addListener(this._touchListener, this);
            newAdded = true;
        }

So I use cc.EventListener and cc.eventManager to make it.

let listener1 = cc.EventListener.create({
    event: cc.EventListener.TOUCH_ONE_BY_ONE,
    swallowTouches: false,
    onTouchBegan: (touch: cc.Touch, event) => {
        return true;
    },
    onTouchEnded: (touch: cc.Touch, event) => {
        // do something with propagation
    }
});
cc.eventManager.addListener(listener1, this.touchNode);

But EventListener and eventManager are private,
and there is warn below when running.
Simulator: JS: [WARN]: The 'cc.eventManager' will be removed in v2.0, please use 'cc.EventTarget or cc.systemEvent' instead.

And not recommended to use cc.eventManager directly for Node.

http://docs.cocos2d-x.org/creator/api/en/classes/Node.html#on
It’s the recommended way to register touch/mouse event for Node,
please do not use cc.eventManager directly for Node.

So could you teach me how to set the swallowtouches:false officially?

Regards,

unace · March 13, 2019, 5:43pm

Same question here. Does anyone know about this?

slackmoehrle · March 13, 2019, 6:06pm

I tried looking here: https://docs.cocos2d-x.org/creator/api/en/classes/Event.EventTouch.html
but I don’t see anything.

Let us ask @Big_Bear for help.

Big_Bear · March 14, 2019, 2:25am

Reference:https://docs.cocos2d-x.org/creator/manual/en/scripting/events.html
use event.stopPropagation to stop the event delivery.
and you can use BlockInputEvents component to stop touch event easily

atr_toru · March 18, 2019, 8:37am

Hi,

Thank you for your reply.

The behavior of event.stopPropagation and BlockInputEvents are not the same with swallowtouches:false.
So could you consider that make swallowtouches selectable true/false with on method’s argument or any other way ?