Corona SDK 奇怪的过渡行为

Question

我希望我没有错过一些非常明显的东西。我正在尝试理解以下行为。

---

fileOne.lua

return function()
local self = display.newGroup()

local text = display.newText({
    text = "TEXT ONE",
    x = 100,
    y = 100,
    fontSize = 20
})

self:insert(text)

function self:animate()
    local function scale(phase)
        if phase == "down" then
            self.AnimationTransition = transition.scaleTo( self, {xScale=0.95, yScale=0.95, time=500, onComplete=function() scale("up") end} )
        elseif phase == "up" then
            self.AnimationTransition = transition.scaleTo( self, {xScale=1.05, yScale=1.05, time=500, onComplete=function() scale("down") end} )
        end
    end
    scale("down")
end

function self:start()
    self:animate()
end

function self:stop()
    transition.cancel( self.AnimationTransition )
end

return self;
end

---

fileTwo.lua

return function()
local self = display.newGroup()

local text = display.newText({
    text = "TEXT TWO",
    x = 100,
    y = 100,
    fontSize = 20
})

self:insert(text)

function self:animate()
    local function scale(phase)
        if phase == "down" then
            self.AnimationTransition = transition.scaleTo( self, {xScale=0.95, yScale=0.95, time=500, onComplete=function() scale("up") end} )
        elseif phase == "up" then
            self.AnimationTransition = transition.scaleTo( self, {xScale=1.05, yScale=1.05, time=500, onComplete=function() scale("down") end} )
        end
    end
    scale("down")
end

function self:start()
    self:animate()
end

function self:stop()
    transition.cancel( self.AnimationTransition )
end

return self;
end

---

main.lua

local fileOne = require "fileOne" ()
local fileTwo = require "fileTwo" ()

fileOne:start()
fileTwo:stop()

当我编译这个时，动画不起作用。第二个文件中的停止函数会停止第一个文件中的动画。我的命名空间有问题吗？或其他一些参考问题？还是语法问题？

Answer 1

当你打电话时

fileTwo:stop();

您正在调用 transition.cancel( null )，并且似乎以 null 调用此函数会导致奇怪的行为。

如果你把这个放在fileTwo上

if(self.AnimationTransition ~= nil) then
    transition.cancel( self.AnimationTransition )
end

问题消失了。