Question

我需要从exitScene函数中删除计时器，因为我删除了所有的侦听器，但我没有找到如何。这是代码：

function scene:enterScene(event)

    planeta.enterFrame = rotarPlaneta
    Runtime:addEventListener("enterFrame", planeta)

    Runtime:addEventListener("touch", touchScreen)

    timer.performWithDelay( 1000, throwBrickEnemigo,0 )
end

function scene:exitScene(event)

    Runtime:removeEventListener("enterFrame", planeta)
    Runtime:removeEventListener("enterFrame", touchScreen)
    Runtime:removeEventListener("enterFrame", planeta)

end

Answer 1

您需要为计时器分配一个变量并取消它。

local throwBrickTimer -- Reference for the timer

function scene:enterScene(event)

    planeta.enterFrame = rotarPlaneta
    Runtime:addEventListener("enterFrame", planeta)

    Runtime:addEventListener("touch", touchScreen)

    --> Give the timer a variable
    throwBrickTimer = timer.performWithDelay( 1000, throwBrickEnemigo,0 ) 
end

function scene:exitScene(event)

    --> Cancel the timer
    timer.cancel(throwBrickTimer)

    Runtime:removeEventListener("enterFrame", planeta)
    Runtime:removeEventListener("enterFrame", touchScreen)
    Runtime:removeEventListener("enterFrame", planeta)

end

Corona：如何从exitScene函数中删除计时器？

1 个答案: