Layer* uiLayer = Layer::create();    myLayout = dynamic_cast<ui::Layout*>(cocostudio::GUIReader::getInstance()->widgetFromJsonFile("enter/enter_1.json"));    uiLayer->addChild(myLayout);    uiLayer->setPosition(250, 400);    sprite->addChild(uiLayer, 12);

loadingBar = dynamic_cast<LoadingBar*>(myLayout->getChildByTag(1));    loadingBar->setPercent(0);    this->schedule(schedule_selector(HelloWorld::runningSchedule));

void HelloWorld::runningSchedule(float dt){    int prc = loadingBar->getPercent() + 1;    if (prc == 100)    {        auto reScene  = TransitionCrossFade::create(1.0, GameLogin::createScene());//当进度条满时进入下一场景        Director::getInstance()->setDepthTest(false);        Director::getInstance()->replaceScene(reScene);    }    loadingBar->setPercent(prc);}

Button* startBtn = dynamic_cast<Button*>(myLayout->getChildByTag(4)->getChildByTag(69));    startBtn->addTouchEventListener(this, toucheventselector(GameLogin::touchButton));

void HelloWorld::touchButton(Object* obj, TouchEventType eventType){    auto button = dynamic_cast<Button*>(obj);    int tag = button->getTag();    switch (eventType)    {    case TouchEventType::TOUCH_EVENT_BEGAN:        break;    }}