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用游戏开发运营一个实战的例子吧
先贴代码
[cpp] view plaincopy在CODE上查看代码片派生到我的代码片
auto listener1 = EventListenerTouchOneByOne::create();//创建一个触摸监听
listener1->setSwallowTouches(true);//配置不想向下传递触摸 true是不想 默许为false
listener1->onTouchBegan = [](Touch* touch, Event* event){
CCLOG("touch menu");
return true;
};
listener1->onTouchMoved = [](Touch* touch, Event* event){
};
listener1->onTouchEnded = [=](Touch* touch, Event* event){
};
Size visibleSize = Director::getInstance()->getVisibleSize();
Point origin = Director::getInstance()->getVisibleOrigin();
//这里增加了一个MenuItem 用来对比触摸优先级
auto continueItem = MenuItemImage::create(
"ContinueNormal.png",
"ContinueSelect.png",
CC_CALLBACK_1(MenuLayer::menuContinueCallback, this));
continueItem->setPosition(Point(origin.x + visibleSize.width/2 ,
origin.y + visibleSize.height/2+continueItem->getContentSize().height));
// 这里常州手游开发增加了一个背景，下面会用到
auto background = Sprite::create("background.png");
background->setTextureRect(CCRectMake(0, 0, visibleSize.width, visibleSize.height));
background->setContentSize(visibleSize);
background->setPosition(Point(visibleSize.width/2 + origin.x, visibleSize.height/2 + origin.y));
this->addChild(background, 0);
auto menu = Menu::create(continueItem, NULL);
menu->setPosition(Point::ZERO);
this->addChild(menu, 1);
_eventDispatcher->addEventListenerWithFixedPriority(listener1,-128); // 重点即是这两行，下面会有详解
//_eventDispatcher->addEventListenerWithSceneGraphPriority(listener1,background);
上头那段代码实在也有良多注释了，关于触摸屏障主要完成3个处所
[cpp] view plaincopy在常州游戏开发培训CODE上查看代码片派生到我的代码片
listener1->setSwallowTouches(true);//配置不准想下传递触摸
//如下两段代码二选一
//第一段是能够解放配置触摸优先级
//不过不绑定任何器械
_eventDispatcher->addEventListenerWithFixedPriority(listener1,-128);
//这一段是配置触摸绑定到精灵，优先级为默许的0
//_eventDispatcher->addEventListenerWithSceneGraphPriority(listener1,background);
另有一点值得留意的是，触摸优先级越低的越先被触摸。手机App外包相像优先级的，后增加的先被触摸
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