发现个问题， 2.2.5版本 ScrollView 上的sprite 设置setTouchSwallowEnabled(true)后sprite能正常吞噬ScrollView 的触屏事件
但在3.3 rc1上却不行
代码是没有问题的
可以用下面代码测 打开例子touch TestSingleTouch2Scene.lua 将它修改成
import("…includes.functions")
local TestSingleTouch2Scene = class(“TestSingleTouch2Scene”, function()
return display.newScene(“TestSingleTouch2Scene”)
end)
function TestSingleTouch2Scene:ctor()
local l = cc.LayerColor:create(cc.c4b(100, 255, 100,100))
l:setContentSize(cc.size(display.width,display.height))
– parentButton 是 button1 的父节点
self.parentButton = createTouchableSprite({
image = “WhiteButton.png”,
size = cc.size(600, 500),
label = “TOUCH ME !”,
labelColor = cc.c3b(255, 0, 0)})
:pos(display.cx, display.cy)
:addTo(l)
self.scrollView = cc.ScrollView:create()
– scrollView:setDirection(kCCScrollViewDirectionHorizontal)
self.scrollView:setBounceable(true)
self.scrollView:setClippingToBounds(true)
self.scrollView:setDelegate()
self.scrollView:setViewSize(cc.size(display.width,display.height))
self.scrollView:setTouchEnabled(true)
self.scrollView:setContainer(l)
–self:addChild(l)
self:addChild(self.scrollView)
self.parentButton.name = "parentButton"
drawBoundingBox(self, self.parentButton, cc.c4f(0, 1.0, 0, 1.0))
self.parentButton:setTouchEnabled(true)
self.parentButton:addNodeEventListener(cc.NODE_TOUCH_EVENT, function(event)
local label = string.format("parentButton: %s x,y: %0.2f, %0.2f", event.name, event.x, event.y)
self.parentButton.label:setString(label)
return true
end)
-- button1 响应触摸后，会吞噬掉触摸事件
self.button1 = createTouchableSprite({
image = "GreenButton.png",
size = cc.size(400, 160),
label = "TOUCH ME !"})
:pos(300, 400)
:addTo(self.parentButton)
cc.ui.UILabel.new({text = "SWALLOW = YES\n事件在当前对象处理后被吞噬", size = 24})
:align(display.CENTER, 200, 90)
:addTo(self.button1)
drawBoundingBox(self, self.button1, cc.c4f(1.0, 0, 0, 1.0))
self.button1:setTouchEnabled(true)
self.button1:setTouchSwallowEnabled(true) -- 是否吞噬事件，默认值为 true
self.button1:addNodeEventListener(cc.NODE_TOUCH_EVENT, function(event)
local label = string.format("button1: %s x,y: %0.2f, %0.2f", event.name, event.x, event.y)
self.button1.label:setString(label)
return true
end)
-- button2 响应触摸后，不会吞噬掉触摸事件
self.button2 = createTouchableSprite({
image = "PinkButton.png",
size = cc.size(400, 160),
label = "TOUCH ME !"})
:pos(300, 200)
:addTo(self.parentButton)
cc.ui.UILabel.new({text = "SWALLOW = NO\n事件会传递到下层对象", size = 24})
:align(display.CENTER, 200, 90)
:addTo(self.button2)
drawBoundingBox(self, self.button2, cc.c4f(0, 0, 1.0, 1.0))
self.button2:setTouchEnabled(true)
self.button2:setTouchSwallowEnabled(false) -- 当不吞噬事件时，触摸事件会从上层对象往下层对象传递，称为“穿透”
self.button2:addNodeEventListener(cc.NODE_TOUCH_EVENT, function(event)
local label = string.format("button1: %s x,y: %0.2f, %0.2f", event.name, event.x, event.y)
self.button2.label:setString(label)
return true
end)
-- 放置一个开关按钮在屏幕上
local labels = {}
labels = "父对象【可以】捕获触摸事件"
labels = "父对象【不能】捕获触摸事件"
local images = {on = "CheckBoxButton2On.png", off = "CheckBoxButton2Off.png"}
self.captureEnabledButton = cc.ui.UICheckBoxButton.new(images)
:setButtonLabel(cc.ui.UILabel.new({text = labels, size = 24}))
:setButtonLabelOffset(40, 0)
:setButtonSelected(true)
:onButtonStateChanged(function(event)
local button = event.target
button:setButtonLabelString(labels)
end)
:onButtonClicked(function(event)
local button = event.target
self.parentButton:setTouchCaptureEnabled(button:isButtonSelected())
end)
:pos(display.cx - 160, display.top - 80)
:addTo(self)
cc.ui.UILabel.new({
text = "当不允许父对象捕获触摸事件时，\n父对象及其包含的所有子对象都将得不到触摸事件",
size= 24})
:align(display.CENTER, display.cx, display.top - 140)
:addTo(self)
--
app:createNextButton(self)
app:createTitle(self, "单点触摸测试 - 事件穿透和事件捕获")
end
return TestSingleTouch2Scene