CCMenu 事件传参

今天看到OC对UIButton的封装，可以自定响应事件的 今天就拿CCMenuItemImage做实验



 



首先在.h文件 



 



CCMenuItemImage* DidItem(const char*imgName,SEL_MenuHandlerm_pfnSelectior);//声明自己的方法



点cpp文件



CCMenuItemImage* HelloWorld::DidItem(constchar*imgName,SEL_MenuHandler m_pfnSelectior){



    CCMenuItemImage*item=CCMenuItemImage::create(imgName, imgName, this, m_pfnSelectior);



    return item;



}



调用



 SEL_MenuHandler m_pfnSelectior1 = (SEL_MenuHandler)(&HelloWorld::menuCloseCallback);



    SEL_MenuHandler m_pfnSelectior2 = (SEL_MenuHandler)(&HelloWorld::menu1Callback);



    CCMenuItemImage*itemImg=HelloWorld::DidItem("Icon.png", m_pfnSelectior1);



    CCMenuItemImage*itemImg1=HelloWorld::DidItem("Icon.png", m_pfnSelectior2);



    itemImg1->setPosition(0, 100);



    CCMenu* pMenu = CCMenu::create(itemImg,itemImg1, NULL);



    pMenu->setPosition(ccp(70, size.height));



    this->addChild(pMenu);



不但可以封装他的初始化 还可以自定义他的响应回调方法;



 



千万不要问我 tag不能解决吗？解决是肯定的！ 会有一些局限性！



 



OC 事件自定义



 



- (UIButton *)buttonWithFrame:(CGRect)frame action:(SEL)action



{



    UIImage *buttonBackgroundImage = [[UIImage imageNamed:@"button_background.png"]stretchableImageWithLeftCapWidth:5 topCapHeight:5];



    UIImage *disabledButtonBackgroundImage = [[UIImageimageNamed:@"button_background_disabled.png"] stretchableImageWithLeftCapWidth:5topCapHeight:5];



    



    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];



    button.frame = frame;



    [button setBackgroundImage:buttonBackgroundImage forState:UIControlStateNormal];



    [button setBackgroundImage:disabledButtonBackgroundImageforState:UIControlStateDisabled];



    [button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];



    [button setTitleColor:[UIColor grayColor] forState:UIControlStateDisabled];



    [button addTarget:self action:action forControlEvents:UIControlEventTouchUpInside];



    [self.view addSubview:button];



    



    return button;



}



 



调用 



loginButton = [self buttonWithFrame:CGRectMake(20, 100, 280, 40)action:@selector(loginButtonPressed)];