Cocos2d x 为什么我在精灵外部触摸时也会触发触摸事件?

Cocos2d x 为什么我在精灵外部触摸时也会触发触摸事件?,cocos2d-x,cocos2d-x-3.0,cocos2d-x-3.x,Cocos2d X,Cocos2d X 3.0,Cocos2d X 3.x,我有一个包含许多精灵的ui::ScrollView 我创建了每个精灵,并通过如下操作为每个精灵添加了一个触摸监听器: for(int i=0; i < 5; i++){ Sprite* foo = Sprite::createWithSpriteFrameName("foo"); myScrollView->addChild(foo); auto listener = EventListenerTouchOneByOne::create(); lis

我有一个包含许多精灵的ui::ScrollView

我创建了每个精灵,并通过如下操作为每个精灵添加了一个触摸监听器:

for(int i=0; i < 5; i++){
    Sprite* foo = Sprite::createWithSpriteFrameName("foo");
    myScrollView->addChild(foo);

    auto listener = EventListenerTouchOneByOne::create();
    listener->onTouchBegan = [this,somestring](Touch* touch, Event* event){
        ......some code
    };
    listener->onTouchMoved = [foo,this,somestring](Touch* touch, Event* event){
        ......some code
    };
    listener->onTouchEnded = [foo,this,somestring](Touch* touch, Event* event){
        ......some code
    };
 foo->getEventDispatcher->addEventListenerWithSceneGraphPriority(listener1,foo);
}
for(int i=0;i<5;i++){
Sprite*foo=Sprite::CreateWithPriteFrameName(“foo”);
myScrollView->addChild(foo);
自动侦听器=EventListenerTouchOneByOne::create();
listener->OnTouchStart=[this,somestring](触摸*触摸,事件*事件){
……一些代码
};
listener->onTouchMoved=[foo,this,somestring](触摸*触摸,事件*事件){
……一些代码
};
listener->OnTouched=[foo,this,somestring](触摸*触摸,事件*事件){
……一些代码
};
foo->getEventDispatcher->addEventListenerWithSceneGraphPriority(listener1,foo);
}
问题是,如果我点击屏幕上的任何地方,它似乎会触发在循环中创建的所有精灵的触摸事件。我创建侦听器的方式是否有错误,或者与ui::ScrollView中的触摸冲突有关


我使用V3.10,因为这就是TouchListener在cocos2d-x中的工作方式。除非有人吞下了触摸事件,否则将调用所有触摸侦听器。您的代码是:

auto touchSwallower = EventListenerTouchOneByOne::create();
touchSwallower ->setSwallowed(true);
touchSwallower->onTouchBegan = [](){ return true;};
getEventDispatcher->addEventListenerWithSceneGraphPriority(touchSwallower ,scrollview);


for(int i=0; i < 5; i++){
    Sprite* foo = Sprite::createWithSpriteFrameName("foo");
    myScrollView->addChild(foo);

    auto listener = EventListenerTouchOneByOne::create();
    listener->setSwallowed(true);
    listener->onTouchBegan = [this,somestring](Touch* touch, Event* event){
        ......some code
       Vec2 touchPos = myScrollView->convertTouchToNodeSpace(touch);
       return foo->getBoundingBox()->containsPoint(touchPos);
    };
    listener->onTouchMoved = [foo,this,somestring](Touch* touch, Event* event){
        ......some code
    };
    listener->onTouchEnded = [foo,this,somestring](Touch* touch, Event* event){
        ......some code
    };
 foo->getEventDispatcher->addEventListenerWithSceneGraphPriority(listener1,foo);
}
auto-touchWallower=EventListenerTouchOneByOne::create();
TouchWallower->SetWallown(真);
TouchWallower->OnTouchBegined=[](){返回true;};
getEventDispatcher->addEventListenerWithSceneGraphPriority(触摸屏、滚动视图);
对于(int i=0;i<5;i++){
Sprite*foo=Sprite::CreateWithPriteFrameName(“foo”);
myScrollView->addChild(foo);
自动侦听器=EventListenerTouchOneByOne::create();
listener->setSwallowed(true);
listener->OnTouchStart=[this,somestring](触摸*触摸,事件*事件){
……一些代码
Vec2 touchPos=myScrollView->convertTouchToNodeSpace(触摸);
返回foo->getBoundingBox()->containsPoint(touchPos);
};
listener->onTouchMoved=[foo,this,somestring](触摸*触摸,事件*事件){
……一些代码
};
listener->OnTouched=[foo,this,somestring](触摸*触摸,事件*事件){
……一些代码
};
foo->getEventDispatcher->addEventListenerWithSceneGraphPriority(listener1,foo);
}

除非有人吞下触摸事件,否则cocos2dx会将触摸事件发送到每个附加了触摸事件的节点

但是如果您想让“node”默认值判断是否在内容中触摸位置,请尝试使用“UIWidget”和“addTouchEventListener”。它将自行计算

bool Widget::onTouchBegan(Touch *touch, Event *unusedEvent)
{
    _hitted = false;
    if (isVisible() && isEnabled() && isAncestorsEnabled() && isAncestorsVisible(this) )
    {
        _touchBeganPosition = touch->getLocation();
        auto camera = Camera::getVisitingCamera();
        if(hitTest(_touchBeganPosition, camera, nullptr))
        {
            if (isClippingParentContainsPoint(_touchBeganPosition)) {
                _hittedByCamera = camera;
                _hitted = true;
            }
        }
    }
    if (!_hitted)
    {
        return false;
    }
    setHighlighted(true);

    /*
     * Propagate touch events to its parents
     */
    if (_propagateTouchEvents)
    {
        this->propagateTouchEvent(TouchEventType::BEGAN, this, touch);
    }

    pushDownEvent();
    return true;
}