private:
HelloWorld();
~HelloWorld();
//slider lable show
CCLabelTTF* m_pDisplayValueLabel;
void valueChanged(CCObject *sender, CCControlEvent controlEvent);
HelloWorld::HelloWorld()
{
}
HelloWorld::~HelloWorld()
{
CC_SAFE_RELEASE_NULL(m_pDisplayValueLabel);
}
CCScene* HelloWorld::scene()
{
// 'scene' is an autorelease object
CCScene *scene = CCScene::create();
// 'layer' is an autorelease object
HelloWorld *layer = HelloWorld::create();
// add layer as a child to scene
scene->addChild(layer);
// return the scene
return scene;
}
bool HelloWorld::init()
{
//////////////////////////////
// 1. super init first
if ( !CCLayer::init() )
{
return false;
}
CCSize visibleSize = CCDirector::sharedDirector()->getVisibleSize();
CCPoint origin = CCDirector::sharedDirector()->getVisibleOrigin();
//03 Slider
//create a show label
m_pDisplayValueLabel = CCLabelTTF::create("Move the slider thumb!\nThe lower slider is restricted.", "Arial", 24);
m_pDisplayValueLabel->retain();
m_pDisplayValueLabel->setPosition(ccp(visibleSize.width*0.5f, visibleSize.height*0.3f));
this->addChild(m_pDisplayValueLabel);
//create a slider
CCControlSlider* slider = CCControlSlider::create(
"slider/sliderTrack.png", "slider/sliderProgress.png",
"slider/sliderThumb.png");
slider->setPosition(ccp(visibleSize.width*0.5f, visibleSize.height*0.25f));
slider->setMinimumValue(0.0f);
slider->setMaximumValue(5.0f);
this->addChild(slider);
slider->addTargetWithActionForControlEvents(this,
cccontrol_selector(HelloWorld::valueChanged), CCControlEventValueChanged);
return true;
}
void HelloWorld::valueChanged(CCObject *sender, CCControlEvent controlEvent)
{
CCControlSlider* pSlider = (CCControlSlider*)sender;
m_pDisplayValueLabel->setString(CCString::createWithFormat("Upper slider value = %.02f", pSlider->getValue())->getCString());
}