version: cocos2d-x 3.6
1.监听
function GameLayer:onEnter()
local eventDispatcher = self:getEventDispatcher()
local function onTouchBegan(touch, event)
local locationInNode = self:convertToNodeSpace(touch:getLocation())
local s = self:getContentSize()
local rect = cc.rect(0, 0, s.width, s.height)
if cc.rectContainsPoint(rect, locationInNode) then
self:setColor(cc.c3b(255, 0, 0))
return true
end
return false
end
local function onTouchMoved(touch, event)
end
local function onTouchEnded(touch, event)
self:setColor(cc.c3b(255, 255, 255))
end
local listener = cc.EventListenerTouchOneByOne:create()
self._listener = listener
listener:setSwallowTouches(true)
listener:registerScriptHandler(onTouchBegan,cc.Handler.EVENT_TOUCH_BEGAN )
listener:registerScriptHandler(onTouchMoved,cc.Handler.EVENT_TOUCH_MOVED )
listener:registerScriptHandler(onTouchEnded,cc.Handler.EVENT_TOUCH_ENDED )
if 0 == self._fixedPriority then
eventDispatcher:addEventListenerWithSceneGraphPriority(listener, self)
else
eventDispatcher:addEventListenerWithFixedPriority(listener,self._fixedPriority)
end
end
2.移除
function TouchableSpriteWithFixedPriority:onExit()
local eventDispatcher = self:getEventDispatcher()
eventDispatcher:removeEventListener(self._listener)
end
3.注意
onEnter和onExit在lua中不会因节点别add和remove而直接被调用,当子节点被父节点add和remove时,会发送enter和exit的消息,所以需要再初始化节点的时候,监听消息,并在收到消息后调用onEnter或onExit。 http://www.cnblogs.com/songcf/p/4556740.html
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