Cocos2d-x 3.17:制作加载/进度条的最佳方法

//类型1

auto loadingbar = ui::LoadingBar::create("loadingbar.png");
    loadingbar->setPosition(winSize/2);
    loadingbar->setPercent(0);
    this->addChild(loadingbar);
    this->schedule([=](float delta){
        float percent = loadingbar->getPercent();
        percent++;
        loadingbar->setPercent(percent);
        if (percent>=100.0f) {
            this->unschedule("updateLoadingBar");
        }
    }, 0.1f, "updateLoadingBar");

auto timerBG = Sprite::create("loadingbar.png");
    auto loadingBar = ProgressTimer::create(timerBG);
    loadingBar->setPosition(winSize/2);
    loadingBar->setType( ProgressTimerType::BAR );
    loadingBar->setAnchorPoint( Vec2( 0.0, 0.0 ) );
    loadingBar->setBarChangeRate( Vec2( 1,0 ) );
    loadingBar->setMidpoint( Vec2( 0.0, 0.0 ) );
    loadingBar->setPercentage( 34 );
    this->addChild( loadingBar, 2);

    auto prog = ProgressFromTo::create(2.0, 20, 100);

    loadingBar->runAction(prog);

以上两种方法中,哪一种是取得装载进度的最佳方法?