使用版本是 cocos2d-x-3.1.4

彈出對話方塊，有一個背景，吞噬觸控或者點選事件，使觸控或者點選事件不被傳遞下去,將addEventListenerWithSceneGraphPriority函式裡面的this改成當前layer就可以啦

// 覆蓋監聽事件
    auto listener = EventListenerTouchOneByOne::create();
    listener -> onTouchBegan = [](Touch* t,Event* e){
        return true;
    };
    Director::getInstance()
 
->getEventDispatcher()->addEventListenerWithSceneGraphPriority(listener,this);// this改成自己使用的layer，靈活變通啊
    // 吞噬點選事件
    listener->setSwallowTouches(true);

順便來個程式碼示例吧：

void MainLayer::createPassLayer()
{
    // bg
    auto layer = LayerColor::create(Color4B::BLACK);
    layer->setOpacity(80
 
);
    layer->setPosition(0, 0);
    pGameLayer->addChild(layer, 1000);
    // touch listener
    auto listener = EventListenerTouchOneByOne::create();
    listener->setSwallowTouches(true);
    listener->onTouchBegan = [](Touch* t, Event* e){return true;};
    Director::getInstance()->getEventDispatcher()
 
->addEventListenerWithSceneGraphPriority(listener, layer);
    // png
    auto helpBg = Sprite::create("running_level_pass.png");
    helpBg->setAnchorPoint(Vec2(0.5, 0));
    helpBg->setPosition(Vec2(winSize.width/2, 0));
    layer->addChild(helpBg);
    //
    helpBg->runAction(Sequence::create(MoveTo::create(0.5, Vec2(winSize.width/2, winSize.height/2.6)), DelayTime::create(2.0f),CallFuncN::create([this,layer,listener](Ref* pSender){
        Director::getInstance()->getEventDispatcher()->removeEventListener(listener);
        layer->removeFromParent();
        pGameLayer->initGrid(true);

    }),NULL));
}