Corona SDK - 单击时从场景中删除计时器

Question

我有一个newCircle，当点击时会更改圆圈的颜色并启动计时器。我希望能够再次单击圆圈并将其更改为黑色，并从场景中完全删除计时器。

delta = 0

local function tapListener( event )
    if (delta == 0) then
        c1:setFillColor(1,1,0)

        local timeLimit = 20
        timeLeft = display.newText(timeLimit, c1.x, c1.y, native.systemFontBold, 14)
        timeLeft:setTextColor(255,0,0)

        local function timerDown()
           timeLimit = timeLimit-1
           timeLeft.text = timeLimit
             if(timeLimit==0)then
                print("Time Out") -- or do your code for time out
             end
          end
        aTimer = timer.performWithDelay(1000,timerDown,timeLimit)            

        delta = delta + 1

    else 
        c1:setFillColor(0,0,0)

        delta = delta - 1


    end

Answer 1

答案：

else 
    c1:setFillColor(0,0,0)
    timer.cancel( aTimer )
    timeLeft.alpha = 0
    delta = delta - 1


end

timer.cancal( aTimer )停止计时器，timeLeft.aplha = 0隐藏显示计时器的文本