一段时间后，NSTimer在后台停止 [英] NSTimer stops in the background after some time

问题描述

当应用程序进入后台并且在将近17分钟后计时器停止工作时，我使用NSTimer在1秒后调用方法。

I used NSTimer to call a method after 1 sec when app goes in background and after nearly 17 minutes timer stops working.

当它回到正面时它再次开始工作，所以请告诉我为什么会发生这种情况以及如何解决问题。

When it came back in the foregound it again started working, so please tell me why this is happening and how to resolve the issue.

为了同样的目的，我也尝试使用延迟递归的执行选择器，但是再次给出相同的结果。请建议任何解决方案。任何帮助都将完全受到赞赏。

I also tried using perform selector with delay in recursion for the same purpose, but again giving the same result. Please suggest any solution. Any help will be completely appreciated.

推荐答案

Wierd问题 - 我也有这个问题，但以下内容对我有用。

Wierd issue- i too had this one, but the following worked for me.

 //Run the timer on the runloop to ensure that it works when app is in background

  [[NSRunLoop currentRunLoop]addTimer:self.timer forMode: NSDefaultRunLoopMode];

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