第一次火灾后延迟计时器 [英] Delay timer after first fire

问题描述

我的应用程序中有一个触发特定事件的计时器:

I have a timer in my application that triggers a certain event:

myTimer =  NSTimer.scheduledTimerWithTimeInterval(10, target: self,
    selector: "searchForDrivers:", userInfo:nil, repeats: true)

首次触发计时器时，其延迟为10毫秒.我不希望第一个计时器触发延迟，但我希望第二个触发延迟10毫秒.我该如何实现?

The first time the timer is triggered, it has a delay of 10 ms. I don’t want the delay on the first timer trigger, but I'd like the second trigger to be delayed by 10 ms. How can I achieve this?

推荐答案

首先按照您的计划安排计时器.

First schedule the timer as you've done.

timer =  NSTimer.scheduledTimerWithTimeInterval(
    10.0, target: self,
    selector: "searchForDrivers:",
    userInfo: nil,
    repeats: true
)

然后立即射击timer.

timer.fire()

根据文档

您可以使用此方法来触发重复计时器，而不会中断其常规触发时间表.如果该计时器是非重复计时器，则即使触发时间未到，它也会在触发后自动失效.

You can use this method to fire a repeating timer without interrupting its regular firing schedule. If the timer is non-repeating, it is automatically invalidated after firing, even if its scheduled fire date has not arrived.

请参见 NSTimer类参考以获取更多信息.

See the NSTimer Class Reference for more information.

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