首页 > 代码库 > cocos2d-x自定义Button
cocos2d-x自定义Button
cocos2d-x中封装CCMenuItem等相关按钮，但是有些时候需要自己封装按钮，这样能够更加灵活的实现对应功能。
自定义Button，需要重写OnEnter()和onExit()函数，并在对应函数中添加注册和取消注册。
BaseButton.h内容
1 #ifndef BaseButton_H_H 2 #define BaseButton_H_H 3 4 #include "cocos2d.h" 5 using namespace cocos2d; 6 7 typedef SEL_CallFunc v_callback; 8 9 class BaseButton : public CCNodeRGBA, public CCTargetedTouchDelegate10 {11 public:12 BaseButton() : sprite1(NULL), sprite2(NULL), curSprite(NULL), downCallback(NULL), moveCallback(NULL), upCallback(NULL) {}13 static BaseButton* create(const char* pszFileName1, const char* pszFileName2, v_callback upCallback0);14 virtual bool initWithFile(const char* pszFileName1, const char* pszFileName2, v_callback upCallback0);15 16 virtual void onEnter();17 virtual void onExit();18 19 virtual bool ccTouchBegan(CCTouch *pTouch, CCEvent *pEvent);20 virtual void ccTouchMoved(CCTouch *pTouch, CCEvent *pEvent);21 virtual void ccTouchEnded(CCTouch *pTouch, CCEvent *pEvent);22 //virtual void ccTouchCancelled(CCTouch *pTouch, CCEvent *pEvent);23 24 void downHand();25 26 virtual void update();27 28 private:29 CCSprite *sprite1, *sprite2, *curSprite;30 //vCallback downCallback, moveCallback, upCallback; 31 //void (*downCallback)(void);32 void (*moveCallback)(void);33 //void (*upCallback)(void);34 v_callback downCallback;35 v_callback upCallback;36 };37 38 #endif
BaseButton.cpp内容
1 #include "BaseButton.h" 2 3 BaseButton* BaseButton::create(const char* pszFileName1, const char* pszFileName2, v_callback upCallback0) 4 { 5 BaseButton *button = new BaseButton(); 6 if(button && button->initWithFile(pszFileName1, pszFileName2, upCallback0)){ 7 button->autorelease(); 8 return button; 9 }10 CC_SAFE_DELETE(button);11 return NULL;12 }13 14 bool BaseButton::initWithFile(const char* pszFileName1, const char* pszFileName2, v_callback upCallback0)15 {16 if( !CCNodeRGBA::init() ){17 return false;18 }19 if(pszFileName1 == NULL){20 return false;21 }22 23 sprite1 = CCSprite::create( pszFileName1 );24 CCSize size = sprite1->getContentSize();25 if(pszFileName2 != NULL){26 sprite2 = CCSprite::create( pszFileName2 );27 }28 else{29 sprite2 = CCSprite::create( pszFileName1 );30 sprite2->setColor( ccc3(0, 0, 0) );31 sprite2->setOpacity( (GLubyte)(255*0.7) );32 }33 sprite2->setVisible(false);34 sprite2->setScaleX(size.width/sprite2->getContentSize().width);35 sprite2->setScaleY(size.height/sprite2->getContentSize().height);36 addChild(sprite1);37 addChild(sprite2);38 curSprite = sprite1;39 40 downCallback = (SEL_CallFunc)(&BaseButton::downHand);41 upCallback = upCallback0;42 43 scheduleUpdate();44 45 return true;46 }47 48 void BaseButton::onEnter()49 {50 CCDirector::sharedDirector()->getTouchDispatcher()->addTargetedDelegate(this, 0, true);51 }52 53 void BaseButton::onExit()54 {55 CCDirector::sharedDirector()->getTouchDispatcher()->removeDelegate(this);56 }57 58 bool BaseButton::ccTouchBegan(CCTouch* pTouch, CCEvent *pEvent)59 {60 //CCPoint point = pTouch->getLocation();61 CCPoint point = this->convertTouchToNodeSpaceAR(pTouch);62 if( sprite1->boundingBox().containsPoint(point) ){63 if(downCallback != NULL){64 (this->*downCallback)();65 }66 return true;67 }68 return false;69 }70 71 void BaseButton::ccTouchMoved(CCTouch *pTouch, CCEvent *pEvent)72 {73 if(moveCallback != NULL){74 moveCallback();75 }76 }77 78 void BaseButton::ccTouchEnded(CCTouch *pTouch, CCEvent *pEvent)79 {80 sprite2->setVisible(false);81 sprite1->setVisible(true);82 if(upCallback != NULL){83 //upCallback();84 (this->*upCallback)();85 }86 //CCMessageBox("Up", "Info");87 }88 89 void BaseButton::downHand()90 {91 sprite1->setVisible(false);92 sprite2->setVisible(true);93 }94 95 void BaseButton::update()96 {97 98 }
MyScene.h内容
1 #ifndef MyScene_H_H 2 #define MyScene_H_H 3 4 #include "cocos2d.h" 5 using namespace cocos2d; 6 7 8 9 class MyScene : public CCLayer10 {11 public:12 static CCScene* createScene();13 virtual bool init();14 CREATE_FUNC( MyScene );15 16 void upCallback();17 18 19 private:20 };21 22 23 #endif
MyScene.cpp内容
1 #include "MyScene.h" 2 #include "BaseButton.h" 3 4 5 CCScene* MyScene::createScene() 6 { 7 CCScene *scene = CCScene::create(); 8 MyScene *layer = MyScene::create(); 9 scene->addChild(layer);10 return scene;11 };12 13 14 bool MyScene::init()15 {16 if( !CCLayer::init() ){17 return false;18 }19 20 CCSize size = CCDirector::sharedDirector()->getWinSize();21 22 BaseButton *button = BaseButton::create("pal_2.png", "pal_3.png", (v_callback)(&MyScene::upCallback1) );23 button->setAnchorPoint(ccp(0.5, 0.5));24 button->setPosition(100, size.height/2);25 button->setScale(0.25f);26 addChild(button);27 28 BaseButton *button2 = BaseButton::create("pal_2.png", "pal_3.png", (v_callback)(&MyScene::upCallback2) );29 button2->setAnchorPoint(ccp(0.5, 0.5));30 button2->setPosition(300, size.height/2);31 button2->setScale(0.25f);32 addChild(button2);33 34 35 return true;36 }37 38 void MyScene::upCallback1()39 {40 CCMessageBox("Up1", "Info");41 }42 43 void MyScene::upCallback2()44 {45 CCMessageBox("Up2", "Info");46 }
运行结果：
这里的button响应函数使用的是成员函数指针，需要通过对象进行使用，如(this->*upCallback)()。
而普通的函数指针则需要是static函数，成员函数则会出现错误。
cocos2d-x自定义Button
声明：以上内容来自用户投稿及互联网公开渠道收集整理发布，本网站不拥有所有权，未作人工编辑处理，也不承担相关法律责任，若内容有误或涉及侵权可进行投诉： 投诉/举报 工作人员会在5个工作日内联系你，一经查实，本站将立刻删除涉嫌侵权内容。