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转自:http://blog.csdn.net/lengxue789/article/details/38296029
1. 屏幕触摸事件
EventListenerTouchOneByOne ：单点触控
- std::function<bool(Touch*,Event*)>onTouchBegan;//触摸开始事件
- std::functionvoid(Touch*,0); font-weight:bold; background-color:inherit">>onTouchMoved;//触摸移动事件
- std::function>onTouchEnded;//触摸结束事件
- >onTouchCancelled;//触摸中断事件
EventListenerTouchAllAtOnce：多点触控
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void(conststd::vectorTouch*>&,0); font-weight:bold; background-color:inherit">>onTouchesBegan;//触摸开始事件
>onTouchesMoved;//触摸移动事件
>onTouchesEnded;//触摸结束事件
>onTouchesCancelled;//触摸中断事件
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boolTouchTest::init()
{
if(!Layer::init())
returnfalse;
}
//允许接收触摸事件
this->setTouchEnabled(true);
EventDispatcher*eventDispatcher=Director::getInstance()->getEventDispatcher();
autolisten=EventListenerTouchAllAtOnce::create();
listen->onTouchesBegan=CC_CALLBACK_2(TouchTest::onTouchesBegan,this);
listen->onTouchesMoved=CC_CALLBACK_2(TouchTest::onTouchesMoved,this);
>onTouchesEnded=CC_CALLBACK_2(TouchTest::onTouchesEnded,0); font-weight:bold; background-color:inherit">>onTouchesCancelled=CC_CALLBACK_2(TouchTest::onTouchesCancelled,108); list-style:decimal-leading-zero outside; color:inherit; line-height:18px"> eventDispatcher->addEventListenerWithSceneGraphPriority(listen,108); list-style:decimal-leading-zero outside; line-height:18px; margin:0px!important; padding:0px 3px 0px 10px!important">
returntrue;
//触摸事件开始，手指按下时
voidTouchTest::onTouchesBegan(conststd::vector>&touches,cocos2d::Event*event)
for(auto&item:touches)
autotouch=item;
autopos1=touch->getLocation();
autopos2=touch->getLocationInView();
autopos3=Director::getInstance()->convertToUI(pos2);
log("pos1x:%f,y:%f",pos1.x,pos1.y);
log("pos2x:%f,pos2.x,pos2.y);
log("pos2x:%f,pos3.x,pos3.y);
}
//触摸移动事件，也就是手指在屏幕滑动的过程
voidTouchTest::onTouchesMoved(conststd::vector {
log("TouchTestonTouchesMoved");
//触摸事件结束，也就是手指松开时
voidTouchTest::onTouchesEnded(conststd::vector log("TouchTestonTouchesEnded");
//打断触摸事件，一般是系统层级的消息，如来电话，触摸事件就会被打断
voidTouchTest::onTouchesCancelled(conststd::vector log("TouchTestonTouchesCancelled");
}
setTouchEnabled();//设置是否允许接收触摸事件
获取单击屏幕时的坐标方式：
（1）touch->getLocation(); 获得单击坐标，基于3D
（2）touch->getLocationInView(); 获取单击坐标，是屏幕坐标系的坐标
（3）Director::getInstance()->convertToUI(pos2); //将屏幕坐标系的坐标，转为cocos2dx的坐标
坐标系：cocos2d-x是基于openGLES的，所以遵循openGL的坐标系，也就是说是以屏幕的左下角为坐标原点。屏幕坐标系一般是以左下角为坐标原点。
2. 修改触控方式
//设置多点触控
this->setTouchMode(Touch::DispatchMode::ALL_AT_ONCE);
//设置单点触控
//this->setTouchMode(Touch::DispatchMode::ONE_BY_ONE);
单点触控触摸监听代码：
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this->setTouchMode(Touch::DispatchMode::ONE_BY_ONE);
autooneTouch=EventListenerTouchOneByOne::create();
oneTouch->onTouchBegan=CC_CALLBACK_2(TouchTest::onTouchBegan,108); list-style:decimal-leading-zero outside; line-height:18px; margin:0px!important; padding:0px 3px 0px 10px!important"> oneTouch->onTouchMoved=CC_CALLBACK_2(TouchTest::onTouchMoved,0); font-weight:bold; background-color:inherit">>onTouchEnded=CC_CALLBACK_2(TouchTest::onTouchEnded,0); font-weight:bold; background-color:inherit">>onTouchCancelled=CC_CALLBACK_2(TouchTest::onTouchCancelled,0); font-weight:bold; background-color:inherit">>addEventListenerWithSceneGraphPriority(oneTouch,this);
多点触控的触摸监听代码：
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//设置多点触控
>setTouchMode(Touch::DispatchMode::ALL_AT_ONCE);
autolisten=EventListenerTouchAllAtOnce::create();
eventDispatcher- 3. 屏蔽触摸向下传递
listen->setSwallowTouches(true);
setSwallowTouches用于设置是否吞没事件，也就是当某个触摸事件回调的时，截断该事件，让它不能继续传递给其他人。 （编辑：李大同）
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