cocos2dx3.6 弹出对话框的实现
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头文件： // // PopAlertDialog.h // macstudycocos2dx // Created by WangWei on 15/6/8. // #ifndef __macstudycocos2dx__PopAlertDialog__ #define __macstudycocos2dx__PopAlertDialog__ #pragma once #include "cocos2d.h" #include "cocos-ext.h" USING_NS_CC; USING_NS_CC_EXT; class PopAlertDialog:public LayerColor{ //继承LayerColor类，方便更改layer的颜色和透明度 public: PopAlertDialog(); ~PopAlertDialog();
virtual bool init(); CREATE_FUNC(PopAlertDialog);
static PopAlertDialog* create(const char* backgroudImage,Size dialogSize);
bool onTouchBegan(Touch* touch,Event* event); void onTouchMoved(Touch* touch,Event* event); void onTouchEnded(Touch* touch,Event* event);
void setTitle(const char* title,int fontsize=20);
void setContentText(const char* text,int fontsize=20,int padding=50,int paddingTop=50);
void setCallBackFunc(Ref* target,SEL_CallFuncN callfun);
bool addButton(const char* normalImage,const char* selectedImage,const char* title,int tag=0);
virtual void onEnter(); virtual void onExit();
void backgroundFinish();
private: void buttonCallBack(Ref* pSender);
int m_contentPadding; int m_contentPaddingTop; Size m_dialogContentSize; //对话框大小
Ref* m_callbackListener; SEL_CallFuncN m_callback;
CC_SYNTHESIZE_RETAIN(Menu*,m__pMenu,MenuButton); CC_SYNTHESIZE_RETAIN(Sprite*,m__sfBackGround,SpriteBackGround); CC_SYNTHESIZE_RETAIN(Scale9Sprite*,m__s9BackGround,Sprite9BackGround); CC_SYNTHESIZE_RETAIN(LabelTTF*,m__ltTitle,LabelTitle); CC_SYNTHESIZE_RETAIN(LabelTTF*,m__ltContentText,LabelContentText); }; #endif /* defined(__macstudycocos2dx__PopAlertDialog__) */ cpp文件： // PopAlertDialog.cpp // #include "PopAlertDialog.h" PopAlertDialog::PopAlertDialog() : m__pMenu(NULL) ,m_contentPadding(0) (0) (NULL) (NULL) (NULL) (NULL) (NULL) (NULL) {
} PopAlertDialog::~PopAlertDialog(){ CC_SAFE_RELEASE(m__pMenu); CC_SAFE_RELEASE(m__sfBackGround); CC_SAFE_RELEASE(m__s9BackGround); CC_SAFE_RELEASE(m__ltContentText); CC_SAFE_RELEASE(m__ltTitle); } bool PopAlertDialog::init(){ if (!CCLayerColor::init()) { return false; } Menu* menu=Menu::create(); menu->setPosition(CCPointZero); setMenuButton(menu);
auto listener=EventListenerTouchOneByOne::create(); listener->setSwallowTouches(true); listener->onTouchBegan=CC_CALLBACK_2(PopAlertDialog::onTouchBegan,this); listener->onTouchMoved=CC_CALLBACK_2(PopAlertDialog::onTouchMoved,this); listener->onTouchEnded=CC_CALLBACK_2(PopAlertDialog::onTouchEnded,this); auto dispatcher=Director::getInstance()->getEventDispatcher(); dispatcher->addEventListenerWithSceneGraphPriority(listener,this); //设置弹出层的颜色，指定为淡灰色 setColor(Color3B::GRAY); setOpacity(128); return true; } bool PopAlertDialog::onTouchBegan(Touch* touch,Event* event){ return true; } void PopAlertDialog::onTouchMoved(Touch* touch,Event* event){ } void PopAlertDialog::onTouchEnded(Touch* touch,Event* event){ } PopAlertDialog* PopAlertDialog::create(const char* backgoundImage,Size dialogSize){ //创建弹出对话框，指定背景图和大小。 PopAlertDialog* layer=PopAlertDialog::create(); //layer->setSpriteBackGround(Sprite::create(backgoundImage)); layer->setSprite9BackGround(Scale9Sprite::create(backgoundImage));
layer->m_dialogContentSize=dialogSize; return layer; } void PopAlertDialog::setTitle(const char* title,int fontsize /*=20*/){ LabelTTF* label=LabelTTF::create(title,"",fontsize); label->setColor(Color3B::RED); setLabelTitle(label); } void PopAlertDialog::setContentText(const char* text,int fontsize,int padding,int paddingTop){ LabelTTF* ltf=LabelTTF::create(text,fontsize); ltf->setColor(Color3B::BLUE); setLabelContentText(ltf); m_contentPadding=padding; m_contentPaddingTop=paddingTop; } void PopAlertDialog::setCallBackFunc(Ref*target,SEL_CallFuncN callfun){ m_callbackListener=target; m_callback=callfun; } bool PopAlertDialog::addButton(const char *normalImage, const char *selectedImage,int tag){ Size winSize=Director::getInstance()->getWinSize(); Point center_point=Point(winSize.width/2,winSize.height/2); auto menuImage=MenuItemImage::create( normalImage, selectedImage, CC_CALLBACK_1(PopAlertDialog::buttonCallBack,this) ); menuImage->setTag(tag); menuImage->setPosition(center_point);
Size menuSize=menuImage->getContentSize(); Label* labelttf=Label::createWithTTF(title,"fonts/arial.ttf", 15); labelttf->setColor(Color3B(Color3B::BLACK)); labelttf->setPosition(Point(menuSize.width/2,menuSize.height/2)); menuImage->addChild(labelttf); getMenuButton()->addChild(menuImage); return true; } void PopAlertDialog::buttonCallBack(Ref* pSender){ Node* node=dynamic_cast<Node*>(pSender); //log("[========PopAlertDialog:buttonCallBack=======]touch tag:%d",node->getTag()); if (m_callback&&m_callbackListener) { (m_callbackListener->*m_callback)(node); } this->removeFromParentAndCleanup(true); } void PopAlertDialog::onEnter(){ //log("PopAlertDialog::onEnter is loading");
LayerColor::onEnter(); Size winSize=Director::getInstance()->getWinSize(); Point center=Point(winSize.width/2,winSize.height/2); //Sprite* background=getSpriteBackGround(); Scale9Sprite* background=getSprite9BackGround(); background->setContentSize(m_dialogContentSize);//指定对话框大小 background->setPosition(Point(winSize.width/2,winSize.height/2)); this->addChild(background,0,0); Action* popupActions=Sequence::create( ScaleTo::create(0.0,0.0), ScaleTo::create(0.06,1.05), ScaleTo::create(0.08,0.95),1.0), CallFunc::create(CC_CALLBACK_0(PopAlertDialog::backgroundFinish,this)) ,NULL); background->runAction(popupActions); } void PopAlertDialog::backgroundFinish(){ Size winSize=Director::getInstance()->getWinSize(); Point pCenter=Point(winSize.width/2,winSize.height/2); this->addChild(getMenuButton()); float btnWidth=m_dialogContentSize.width/(getMenuButton()->getChildrenCount()+1); Vector<Node*> vector=getMenuButton()->getChildren(); Ref* pObj=NULL; int i=0; for (Node*pObj:vector){ Node* node=dynamic_cast<Node*>(pObj); node->setPosition(Point(winSize.width/2-m_dialogContentSize.width/2+btnWidth*(i+1),winSize.height/2-m_dialogContentSize.height/3)); i++; } if (getLabelTitle()) { getLabelTitle()->setPosition(ccpAdd(pCenter,ccp(0,m_dialogContentSize.height/2-35.0f))); this->addChild(getLabelTitle()); } if (getLabelContentText()) { CCLabelTTF* ltf=getLabelContentText(); ltf->setPosition(ccp(winSize.width/2,winSize.height/2)); ltf->setDimensions(CCSizeMake(m_dialogContentSize.width-m_contentPadding*2,m_dialogContentSize.height-m_contentPaddingTop)); ltf->setHorizontalAlignment(kCCTextAlignmentLeft); this->addChild(ltf); }
} void PopAlertDialog::onExit(){ log("PopAlertDialog onExit"); CCLayerColor::onExit(); } 调用：
MenuItemSprite* item1=MenuItemSprite::create(btn_normal_sprite,btn_select_sprite,nullptr,CC_CALLBACK_1(MenuItemSpritTest::select_learn,this)); select_learn方法：
void MenuItemSpritTest::select_learn(Object* pSender){ log("you had select this button");
PopAlertDialog* popup=PopAlertDialog::create("background01.png",Size(800,250)); popup->setTitle("Message"); popup->setContentText("This is a test message!",20,50,150); popup->setCallBackFunc(this,callfuncN_selector(MenuItemSpritTest::popButtonCallback)); popup->addButton("btnreturn.png","btnreturn.png","OK",0); ,1); this->addChild(popup);
} void MenuItemSpritTest::popButtonCallback(Node* pNode){ log("[==========]button call back.tag %d",pNode->getTag()); if (pNode->getTag()==0) { Director::getInstance()->end(); } if (pNode->getTag()==1) { //pNode->getParent()->removeFromParent(); pNode->removeFromParent(); }
}
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