cocos代码研究（18）Widget子类Slider学习笔记

理论基础

滑动条控件。

代码实践

实例：

        // Create the slider
        Slider* slider = Slider::create();
        slider->loadBarTexture("cocosui/sliderTrack.png");
        slider->loadSlidBallTextures("cocosui/sliderThumb.png", "cocosui/sliderThumb.png", "");
        slider->loadProgressBarTexture("cocosui/sliderProgress.png");
        slider->setMaxPercent();
        slider->setPosition(Vec2(widgetSize.width / 2.0f, widgetSize.height / 2.0f/* + slider->getSize().height * 2.0f*/));
        slider->addEventListener(CC_CALLBACK_2(UISliderTest::sliderEvent, this));
        _uiLayer->addChild(slider);