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点击拖动按钮后，想让所在的layer监听到屏幕的触摸事件，可以把该按钮拖动开始的时候设置setTouchEnabled为false;
例：
#include "ui/UIButton.h"
bool myDemo::init() {
// 设置点击事件
EventListenerTouchOneByOne *listener = EventListenerTouchOneByOne::create();
listener->onTouchBegan = CC_CALLBACK_2( myDemo::onTouchBegan, this );
listener->onTouchMoved = CC_CALLBACK_2( myDemo::onTouchMoved, this );
listener->onTouchEnded = CC_CALLBACK_2( myDemo::onTouchEnded, this );
// 绑定
getEventDispatcher()->addEventListenerWithSceneGraphPriority( listener, this );
// 按钮创建
Button *btn = ***;
btn ->addTouchEventListener( CC_CALLBACK_2( myDemo::BtnCallBack, this ) );
this->addChild( btn );
}
void myDemo::BtnCallBack( Ref *p, cocos2d::ui::Widget::TouchEventType type ) {
Button *btn = (Button *)p; //
if ( type == Widget::TouchEventType::BEGAN ) {
btn->setPosition( Vec2( btn->getPositionX() - 15, btn->getPositionY() + 15 ) );
btn->setTouchEnabled( false );
}
}
bool myDemo::onTouchBegan( cocos2d::Touch *touch, cocos2d::Event *event ) {
return true;
}
void myDemo::onTouchMoved( cocos2d::Touch *touch, cocos2d::Event *event ) {
CCLOG( "-------------------%d--------------" , a++);
}
void myDemo::onTouchEnded( cocos2d::Touch *touch, cocos2d::Event *event ) {
}
//当拖动按钮时，会进入onTouchMoved方法
cocos2d-x：解决点击拖动按钮后，所在的layer监听不到触摸事件的问题
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原文地址：http://www.cnblogs.com/Colored-Mr/p/4240233.html
