c++ - OnTouchMove 事件未触发

Question

我正在尝试在一个简单的场景中拖放一个 Sprite 。 onTouchBegan 和 onTouchEnded 事件正常触发，但 onTouchMove 事件没有触发，为什么？

这是我的代码:

class Test: public cocos2d::Layer
{
public:

    static cocos2d::Scene* createScene();
    virtual bool init();
    CREATE_FUNC(Test);

    bool onTouchBegan(cocos2d::Touch *touch, cocos2d::Event *event);
    void onTouchMove(cocos2d::Touch *touch, cocos2d::Event *event);
    void onTouchEnded(cocos2d::Touch *touch, cocos2d::Event *event);


    cocos2d::Sprite *catSprite;
    cocos2d::Vec2 touchPosition;
};

对于 Cpp:

Scene* Test::createScene()
{
    auto scene = Scene::create();
    auto layer = Test::create();

    scene->addChild(layer);

    return scene;
}

bool Test::init()
{
    if ( !Layer::init() )
    {
        return false;
    }

    auto origin  = Director::getInstance()->getVisibleOrigin();
    auto windowSize = Director::getInstance()->getVisibleSize();

    auto background = DrawNode::create();
    background->drawSolidRect(origin, windowSize, Color4F(0.6, 0.6, 0.6, 1.0));
    this->addChild(background, -1);

    auto releaseArea = DrawNode::create();
    releaseArea->drawSolidRect(windowSize*0.8,windowSize, Color4F(1.0,0.0,0.0,1.0));    
    this->addChild(releaseArea);

    auto pinfo = AutoPolygon::generatePolygon("cat.png");
    catSprite = Sprite::create(pinfo);
    catSprite->setPosition(Vec2(windowSize.width*0.1, windowSize.height*0.1));
    this->addChild(catSprite,1);

    touchPosition.set(0,0);


    auto dispatcher = Director::getInstance()->getEventDispatcher();
    auto listener = EventListenerTouchOneByOne::create();

    listener->onTouchBegan = CC_CALLBACK_2(Test::onTouchBegan, this);
    listener->onTouchMoved = CC_CALLBACK_2(Test::onTouchMoved, this);
    listener->onTouchEnded = CC_CALLBACK_2(Test::onTouchEnded, this);

    dispatcher->addEventListenerWithSceneGraphPriority(listener, this);


    return true;
}

bool Test::onTouchBegan(cocos2d::Touch *touch, cocos2d::Event *event) {
    cocos2d::log("touch began");
    touchPosition = touch->getLocation();

    if(catSprite->getBoundingBox().containsPoint(touchPosition))
    {
        return true;
    }

    return false;
}

void Test::onTouchMove(cocos2d::Touch *touch, cocos2d::Event *event) {
    cocos2d::log("touch moved");
    catSprite->setPosition(catSprite->getPosition() + touch->getDelta());
}

void Test::onTouchEnded(cocos2d::Touch *touch, cocos2d::Event *event) {
    cocos2d::log("touch ended");
}

我从 cocos2d::log 得到了关于开始和结束事件的正确反馈，但是当我测试它时，移动事件似乎永远不会发生。

Answer 1

该事件称为 onTouchMoved 而不是 onTouchMove。

问候。我自己。