cocos2d-x3.x屏蔽下层触摸(制作透明图层暂停界面)

在init函数中添加如下代码：

bool HelloWorld::init()
{
//////////////////////////////
// 1. super init first
if ( !Layer::init() )
{
return false;
}
Size visibleSize = Director::getInstance()->getVisibleSize();
Vec2 origin = Director::getInstance()->getVisibleOrigin();

auto bg=Sprite::create("HelloWorld.png");

bg->setPosition(Vec2(visibleSize/2)); //设置背景图居中显示

bg->setScale(2); //放大两倍

addChild(bg);

auto white_circle=Sprite::create("white_circle.png");

addChild(white_circle);

auto listen=EventListenerTouchOneByOne::create();

listen->onTouchBegan=[=](Touch * t,Event * e){

auto fadein=FadeIn::create(0); //立即淡入

white_circle->setPosition(t->getLocation()); //获取触摸坐标点并设置白点精灵坐标

auto fadeOut=FadeOut::create(0.5); //让白点淡出

white_circle->runAction(Sequence::create(fadein,fadeOut,NULL));//执行淡出动作完成后，执行callback

return false;
};

_eventDispatcher->addEventListenerWithSceneGraphPriority(listen,this);

auto menu=Menu::create(
MenuItemImage::create("CloseNormal.png",
"CloseSelected.png",
[=](Ref* pSender){

/*
Director::getInstance()->getEventDispatcher()->pauseEventListenersForTarget(this,true);
等价于_eventDispatcher->pauseEventListenersForTarget(this, true);
*/
_eventDispatcher->pauseEventListenersForTarget(this, true); //暂停事件监听

auto colorlay=LayerColor::create(Color4B(0, 0, 0, 128)); //创建一个半透明的颜色层

this->addChild(colorlay);

auto closeItem = MenuItemFont::create("close", [=](Ref* sender){

colorlay->removeFromParent();//从父节点清除clorlay图层,clorlay中的内容（菜单）会随之一起销毁

_eventDispatcher->resumeEventListenersForTarget(this, true);//设置重新接收事件监听

});

closeItem->setPosition(Vec2(100,100));

auto menu2=Menu::create(closeItem,NULL);

colorlay->addChild(menu2); //添加menu2到颜色图层colorlay

}),NULL);

addChild(menu);

return true;

}

效果如图：

创建了一个透明层，中间的菜单按钮已经点击无效



转载来源：http://blog.csdn.net/qq_22560089/article/details/46548227