cocos2dx简单实现TabBarView功能

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吐槽:现在在做一个不是游戏的游戏...选用cocos2dx 来做真心累啊,除了很多问题找不到解决方式之外,就是很多控件没得用!只能靠自己实现...

效果图:

实现方法其实很简单:
下面菜单是一个Menu,然后选用MenuItemSprite来填充,(MenuItemSprite有个selected()unselected()函数,可以方便地切换状态)
然后上面是一个LayerMultiplex,就是一个存放Layer 的Vector,可以很方便地切换显示哪个Layer。

实现代码如下:

HelloWorldScene.h

#ifndef __HELLOWORLD_SCENE_H__
        #define __HELLOWORLD_SCENE_H__

        #include "cocos2d.h"

        USING_NS_CC;

        class HelloWorld : public cocos2d::Layer
        {
        public:
            // there's no 'id' in cpp,so we recommend returning the class instance pointer
            static cocos2d::Scene* createScene();

            // Here's a difference. Method 'init' in cocos2d-x returns bool,instead of returning 'id' in cocos2d-iphone
            virtual bool init();

            // a selector callback
            void menuCloseCallback(cocos2d::Ref* pSender);

            // implement the "static create()" method manually
            CREATE_FUNC(HelloWorld);
        private:
            LayerMultiplex *layers;
            Menu *tabBarItems;
            Sprite *tabBarBg;

            void tapBarMenuPressed(Ref *pSender);

            virtual void onEnter();
        };

        #endif // __HELLOWORLD_SCENE_H__

HelloWorldScene.cpp

#include "HelloWorldScene.h" USING_NS_CC; #define TOOLBARTAG 10086 Scene* HelloWorld::createScene() { // 'scene' is an autorelease object auto scene = Scene::create(); // 'layer' is an autorelease object auto layer = HelloWorld::create(); // add layer as a child to scene scene->addChild(layer); // return the scene return scene; } // on "init" you need to initialize your instance bool HelloWorld::init() { ////////////////////////////// // 1. super init first if ( !Layer::init() ) { return false; } auto layer1 = LayerColor::create(Color4B(180,180,180)); auto layer2 = LayerColor::create(Color4B(255,255,180)); auto layer3 = LayerColor::create(Color4B(0,180)); auto layer4 = LayerColor::create(Color4B(255,180)); layers = LayerMultiplex::create(layer1,layer2,layer3,layer4); this -> addChild(layers); //Menu背景图 tabBarBg = Sprite::create("tarbarBg.png"); tabBarBg -> setPosition(Director::getInstance() -> getVisibleSize().width * 0.5,0); tabBarBg -> setAnchorPoint(Point(0.5,0)); this -> addChild(tabBarBg,1000); auto toolbar1 = MenuItemSprite::create(Sprite::create("toolbar1.png"),Sprite::create("toolbar1_p.png"),CC_CALLBACK_1(HelloWorld::tapBarMenuPressed,this)); toolbar1 -> setTag(TOOLBARTAG + 0); auto toolbar2 = MenuItemSprite::create(Sprite::create("toolbar2.png"),Sprite::create("toolbar2_p.png"),this)); toolbar2 -> setTag(TOOLBARTAG + 1); auto toolbar3 = MenuItemSprite::create(Sprite::create("toolbar3.png"),Sprite::create("toolbar3_p.png"),this)); toolbar3 -> setTag(TOOLBARTAG + 2); auto toolbar4 = MenuItemSprite::create(Sprite::create("toolbar4.png"),Sprite::create("toolbar4_p.png"),this)); toolbar4 -> setTag(TOOLBARTAG + 3); tabBarItems = Menu::create(toolbar1,toolbar2,toolbar3,toolbar4,NULL); tabBarItems -> alignItemsHorizontallyWithPadding(30); tabBarItems -> setPositionY(tabBarBg -> getContentSize().height * 0.5f); tabBarBg -> addChild(tabBarItems); return true; } void HelloWorld::onEnter() { Layer::onEnter(); layers -> switchTo(0); static_cast<MenuItemSprite *>(tabBarItems -> getChildByTag(TOOLBARTAG + 0)) -> selected(); } void HelloWorld::tapBarMenuPressed(Ref *pSender) { auto toolbar = (MenuItemSprite *)pSender; toolbar -> selected(); layers -> switchTo(toolbar -> getTag() - TOOLBARTAG); for (int i = 0; i < tabBarItems -> getChildren().size(); i++) { auto tmpbar = dynamic_cast<MenuItemSprite *>(tabBarItems -> getChildren().at(i)); if (tmpbar != NULL && tmpbar -> getTag() != toolbar -> getTag()) { tmpbar -> unselected(); } } }

代码+图片资源点击这里下载
欢迎访问我在github搭建的博客helkyle.tk

原文链接:https://www.f2er.com/cocos2dx/345566.html

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